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Home / Comfort Food

Easy Crockpot Spaghetti Casserole

4.39
/5
4 hours hours 15 minutes minutes
86 Comments
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By: The Chunky Chefpublished: 02/11/2018

This post may contain affiliate links. Please read my disclosure policy.


Make dinner with barely any effort with this easy crockpot spaghetti casserole. With plenty of bold Italian flavors, the pasta cooks in the slow cooker with the meat sauce, making it tender and incredibly tasty!


This Italian comfort food dinner comes together with minimal effort on your part, and is perfect for a hungry family!  Try this Crockpot spaghetti casserole tonight!

This Crockpot Spaghetti Casserole is every bit as tasty as it is easy!  Even the pasta cooks right in the slow cooker alongside the flavorful meat sauce, making this the ultimate weeknight meal! | #spaghetti #casserole #crockpot #slowcooker #Italianfood #weeknightmeal

Ever since I shared my Slow Cooker Spaghetti Bolognese Sauce, you’ve been asking me for ways to cook spaghetti in the slow cooker.  And here it is!!  The only prep/pre-cooking you have to do here is brown the meat and stir together the sauce ingredients.  Easy peasy!

This recipe actually surprised me.  I saw it in an edition of Southern Living, and was intrigued by the fact that the pasta cooks with the sauce the whole time.  Other recipes usually call for the pasta to be added towards the end of the cooking time.

Spaghetti casserole in slow cooker

So I made the recipe exactly as they had written and it was good, but I felt it could use some tweaks here and there, plus some additional flavors (the original recipe had NO garlic in it… I can’t cook spaghetti without garlic!).  This is the result!  Pure comfort food, with a fraction of the work and hands on cooking time.

One thing to note is that the pasta in this spaghetti casserole is a little softer than a traditional boiled to al-dente pasta.  However, it’s not mushy and is incredibly flavorful from cooking in a meat sauce!

Serving of spaghetti casserole made in a slow cooker

IS THIS LIKE THE MILLION DOLLAR SPAGHETTI?

Not quite.  Million dollar spaghetti has a meat sauce, and spaghetti of course, but it also has a layer of ricotta/cream cheese that’s baked along with it.  In a way it’s sort of like spaghetti and lasagna had a baby 🙂

DOES THE PASTA GET MUSHY?

Not necessarily “mushy”, but is does have a softer texture, very similar to any baked casserole that has pasta in it.  The “bite” of freshly boiled pasta isn’t there.

Plate of crockpot spaghetti

HOW TO MAKE CROCKPOT SPAGHETTI CASSEROLE:

  • Make your sauce first.  I like to use ground beef because we usually have it in our freezer… but all Italian sausage or a mix of both beef an sausage would be a great flavor addition.
  • Make sure to break your spaghetti into thirds.  This helps the pasta cook evenly, as well as making it easier to scoop and eat.
  • Stir stir stir!  Once you add the uncooked spaghetti, make sure you stir it into the meat sauce.  The sauce is what will cook the pasta, so it should be well mixed!
  • Play around with the cheeses if you want!  I like to use mozzarella as it’s a traditional flavor, but I know a lot of people who like to use cheddar on theirs, so feel free to play around with it.
  • To prevent all that condensation on the lid from splashing back into your dish as you take the slow cooker lid off, cover the slow cooker with a dry dishtowel or several paper towels, THEN top with the lid.  Make sure the towel is long enough that you can grab both it and the lid when you take it off, otherwise it could fall into your food.

Scoop of crockpot spaghetti casserole

One thing to note about this recipe is that all slow cookers are different.  It’s inevitable, and frustrating!  That’s why the cooking time is a range for most slow cooker recipes.  My advice would be to check it at 3 hours in and see how the pasta is tasting.  If it’s soft and tender, then you’re good to go ahead and eat!

HELPFUL TOOLS:

  • 6 quart slow cooker (in photos) – I purchased this since it is so much easier to photograph foods in a white slow cooker, but it’s actually a great slow cooker!  It’s not programmable, so if that’s your thing…..
  • Programmable 6 quart slow cooker – I’ve had this exact slow cooker for going on 5 years now, and it’s still going strong!  Great features and a great price too!

WANT TO TRY THIS CROCKPOT SPAGHETTI CASSEROLE?

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This Crockpot Spaghetti Casserole is every bit as tasty as it is easy!  Even the pasta cooks right in the slow cooker alongside the flavorful meat sauce, making this the ultimate weeknight meal! | #spaghetti #casserole #crockpot #slowcooker #Italianfood #weeknightmeal

Easy Crockpot Spaghetti Casserole

4.39 from 54 votes
Author: The Chunky Chef
Prep Time: 15 minutes minutes
Cook Time: 4 hours hours
Total Time: 4 hours hours 15 minutes minutes
Calories: 347
Servings: 6 servings
(hover over # to adjust)
Print Rate Pin
Make dinner with barely any effort with this easy crockpot spaghetti casserole. With plenty of bold Italian flavors, the pasta cooks in the slow cooker with the meat sauce, making it tender and incredibly tasty!

Ingredients

  • 2 lbs ground chuck (80/20 is what I use)
  • 1 medium yellow onion, chopped
  • 5-7 cloves garlic, minced
  • 1 (26 oz) jar of marinara sauce, your favorite brand
  • 1 (15 oz) can of fire roasted diced tomatoes
  • 1/2 cup water
  • 1 tsp dried Italian seasoning
  • 2 tsp balsamic vinegar
  • 1/2 tsp dried thyme
  • 1/2 - 1 tsp dried basil
  • 1/2 - 1 tsp dried oregano
  • 1/2 tsp kosher salt
  • 1/4 tsp black pepper
  • pinch of sugar, to counteract the acidity of the canned tomatoes
  • 8 oz dried spaghetti pasta, broken into thirds
  • 1-2 cups shredded mozzarella cheese
  • fresh parsley or basil, minced, for garnish
  • freshly grated Parmesan cheese, for garnish

Instructions

  • Heat a large skillet over MED to MED-HIGH heat with a small drizzle of oil.  Add ground beef and onion and cook 5-6 minutes, until beef is cooked through, crumbling as you cook.  Drain meat/onion mixture and return to skillet.
  • Reduce heat to MED-LOW, add garlic and cook 1-2 minutes.  Add marinara sauce, diced tomatoes, water, Italian seasoning, balsamic vinegar, thyme, basil, oregano, salt, pepper, and sugar.  Stir to combine well.
  • Spoon meat mixture into lightly greased 6 quart slow cooker.  Top with broken spaghetti and stir together.  Top with shredded cheese, cover and cook on LOW 4 hours.
  • Serve garnished with fresh parsley or basil and a sprinkle of grated Parmesan cheese if desired.

Want to save this recipe for later? Click the heart in the bottom right corner to save to your own recipe box!

Chef Tips

NEED TO COOK THIS CASSEROLE LONGER?
I get it, some days you won't be home for a long time and a 3-4 hour cooking time just doesn't work for you right?  Try this variation:
  • Make meat sauce as directed and add to slow cooker.  DON'T add pasta.  Cook on LOW for anywhere from 4-8 hours.  
  • Open lid and stir in broken, uncooked spaghetti.  Mix together well, top with cheese, then cover and cook on HIGH for 30-40 minutes.  Check spaghetti for doneness, and cook a bit longer if needed.

Nutrition Disclaimer

The Chunky Chef is not a dietician or nutritionist, and any nutritional information shared is an estimate. If calorie count and other nutritional values are important to you, we recommend running the ingredients through whichever online nutritional calculator you prefer. Calories can vary quite a bit depending on which brands were used.

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This Crockpot Spaghetti Casserole is every bit as tasty as it is easy!  Even the pasta cooks right in the slow cooker alongside the flavorful meat sauce, making this the ultimate weeknight meal! | #spaghetti #casserole #crockpot #slowcooker #Italianfood #weeknightmeal

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Meet The Chunky Chef

Hey there! I'm Amanda. Wife, mother, photography nerd, and bacon lover! I believe that delicious meals should be easy to make. Now that you’re here, stay a bit, browse a few recipes, and let’s get cookin’!

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4.39 from 54 votes (22 ratings without comment)

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Recipe Rating




  1. Jamie says

    Posted on 2/6 at 11:51 am

    Just FYI for ppl like that guy that doesn’t get crock pot cooking apparently. Some moms/people work & need dinner done when they get home. I prep my stuff either night before or that morning, go to work. Get home about 6:30 and all I really have to do is side items if even. BAM – Family gets a hot meal @ a decent time. Planning to try this soon, adding to a weekly menu. Oh and ‘DUDE’ that’s something else we often have to do too. Lol lol – THANKS for the recipe!!!!

    Reply
  2. Sandy says

    Posted on 1/25 at 7:19 am

    excited to try this

    Reply
  3. Kathleen Crosby says

    Posted on 1/17 at 12:29 pm

    This is by far, the best spaghetti I’ve ever had…no exception. I’m 70 and have loved spaghetti my whole life. I did, however, cook for only 3 1/2 hrs because I like mine al dente. But, yummmmm!

    Reply
  4. Yvonne says

    Posted on 1/15 at 12:02 pm

    Can I double al ingredients to make this for 12 instead of 6 in a single batch? 

    Reply
    • The Chunky Chef says

      Posted on 1/15 at 8:15 pm

      I haven’t tested this recipe by doubling it, so I can’t say for certain, but I think if you have a big enough crockpot, it might work.

      Reply
    • Jo says

      Posted on 2/26 at 8:58 am

      I’m cooking for my office and was also wondering if I could double. 

      Reply
  5. Mitch says

    Posted on 11/29 at 12:26 pm

    This is more like double the cooking time spaghetti…what is the advantage if you have to cook the meat prior to adding to the pot? I will not use this recipe.

    Reply
    • The Chunky Chef says

      Posted on 11/29 at 8:03 pm

      Well for starters, crockpot meals are used by people who want to come home and have dinner practically done for them. You brown the meat before adding to the pot in most crockpot recipes using beef, as it will be really greasy if you cook it in the crockpot. Everyone has different tastes and preferences; just because you don’t like this recipe, that doesn’t mean that many others won’t as well. It IS possible to click away or scroll right past something you don’t like or agree with. Good day 🙂

      Reply
      • Tami says

        Posted on 1/25 at 7:11 pm

        Glad you replied to that dude. “I will not use this recipe!” What a meaningful contribution… LOL! 

        I just made it, but instead of cooking the sauce all day on low I’m cooking it on high for a shorter time (with the pasta), so I’ll see how it turns out the quickie way. Anyway, it sounds amazing- can’t wait till dinner! 

        Reply
        • Denise says

          Posted on 3/15 at 7:43 pm

          This is so good! I rarely comment, but had to. I’ve made it multiple times and its my family’s FAVORITE meal I make. Lots of flavor but not spicy and the noodles even though not al dente have so much flavor. The edges are more well done and sooooo good…like a cheesey burnt noodle, but soft. Kids fight over the “burnt” parts. My 5 year old who is picky about things being mixed together loves it and has seconds and thirds. Thank you for posting! It’s a go-to for our family! (Two quick tips – make sure noodles are submerged after you mix them in. If they arent, they can get really hard. Instead of spaghetti, I use farfalle or shell noodles and it turns out great)!

          Reply
  6. Sylvia says

    Posted on 11/14 at 7:37 am

    How many servings  and how many calories are in this recipe 

    Reply
    • The Chunky Chef says

      Posted on 11/14 at 8:50 am

      There’s a bright green box in the upper left-hand corner of the recipe box that says how many servings are in each recipe (6 servings for this recipe), and right above the ingredients it says how many calories (347 per serving for this recipe). This calorie count is an estimation, as things like brands used, etc, can alter the nutritional information.

      Reply
  7. Emily says

    Posted on 11/13 at 11:23 pm

    3 hours on low was plenty of time. But good stuff!

    Reply
  8. Charlie says

    Posted on 7/28 at 7:41 pm

    DO NOT COOK FOR 4 hrs after. Mine was part burned after 2.3 hours. Check after 1 hr.   

    Reply
    • The Chunky Chef says

      Posted on 7/28 at 9:05 pm

      It sounds like your slow cooker cooks at a high temperature, even on low. I mention in the post how all slow cookers are different and it may take some testing to find out what works for you with your cooker.

      Reply
  9. Dianna McFeters says

    Posted on 5/27 at 11:16 am

    Going to be moving this week-end so all my pots are packed so I wanted to make a recipe in a Crock Pot. Found this one & will be making it today!! Thank you so much.

    Reply
    • The Chunky Chef says

      Posted on 5/27 at 8:14 pm

      Hope your move goes well! We’ll be moving in about 2 weeks as well, it’s certainly a crazy time.

      Reply
  10. Freda Marie says

    Posted on 5/14 at 8:51 pm

    EXCELLENT! Makes a LOT!

    Reply
  11. Clare says

    Posted on 5/8 at 5:02 pm

    Is 8 oz of pasta really enough for a sauce that has 2lb of meat?

    Reply
    • The Chunky Chef says

      Posted on 5/8 at 9:20 pm

      It bulks up quite a bit during cooking 🙂

      Reply
    • Chrissy Beard says

      Posted on 10/11 at 12:01 pm

      Did you end up using 2lbs meat? I am wondering same thing

      Reply
  12. Jill says

    Posted on 2/18 at 2:22 pm

    Can you substitute ground turkey for the beef?

    Reply
    • The Chunky Chef says

      Posted on 2/18 at 8:13 pm

      I think that would definitely work 🙂

      Reply
  13. Sandra | A Dash of Sanity says

    Posted on 2/17 at 12:58 pm

    This looks really good! I am sure this will be a huge hit with my family!

    Reply
  14. Krista says

    Posted on 2/13 at 9:13 pm

    Spaghetti in casserole form! Count me in!

    Reply
  15. Patricia @ Grab a Plate says

    Posted on 2/13 at 2:28 pm

    No garlic? That’s just crazy talk — glad you switched things up! 😀 This looks like a tasty dish & one I wouldn’t have thought to try before!

    Reply
  16. Katerina @ diethood .com says

    Posted on 2/13 at 10:05 am

    WOW!! The perfect dinner!! It looks SO delicious!!

    Reply
  17. Erin | Dinners,Dishes and Dessert says

    Posted on 2/13 at 9:35 am

    Wow! I will make this tonight! Looks so perfect !

    Reply
  18. Catalina says

    Posted on 2/13 at 6:13 am

    Seems to be our perfect Sunday dinner! We all love pasta!

    Reply
  19. Demeter says

    Posted on 2/12 at 8:13 pm

    Such a great meal for a busy weeknight! Prep in the morning and come home to dinner!

    Reply
  20. Richa Gupta says

    Posted on 2/12 at 8:07 am

    This sounds incredible easy and I love that the pasta is added along with everything else right in the beginning. So you just dump and forget! Can’t wait to try this

    Reply
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