Slow Cooker Spaghetti Casserole – so easy to make with only 8 ingredients! No need to precook the pasta! It cooks right in the crockpot!! This is on repeat in our house! Ground round, Italian sausage, spaghetti noodles, spaghetti sauce, diced tomatoes, Italian seasoning, cheddar cheese, and parmesan cheese. Ready to eat in 4 hours. All you need is a quick salad and some crusty bread and dinner is done!
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Anyone else a HUGE fan of their slow cooker. I use it at least once a week, and even more during the holidays. I love being able to dump everything in the slow cooker and come back to dinner. This Slow Cooker Spaghetti Casserole is a favorite! The best part about the whole recipe is that you don’t have to precook the noodles! YASSSS! This Spaghetti Casserole is so easy to make and tastes great! All you need is a salad and some crusty bread and dinner is done!
How to Make Spaghetti Casserole in the Slow Cooker
As I said, this Slow Cooker Spaghetti Casserole is super easy to make. Start with browning your meat. You can use Italian sausage, ground beef, ground turkey, or a combination of them all. Whatever you prefer. Once the meat is cooked, you can assemble the casserole.
Combine the cooked meat with a jar of your favorite spaghetti sauce, water, some diced tomatoes, and Italian Seasoning. Place half of the meat mixture in the bottom of the crockpot. Top the sauce with uncooked spaghetti noodles. Top the noodles with the remaining meat sauce and top with cheese. Cover the crockpot and cook on LOW for 4 hours.
You can brown the meat ahead of time and assemble the casserole when you are ready to cook it. Feel free to add a layer of ricotta or cottage cheese to the casserole. I think it would take this casserole to the next level! Spread the cheese on top of the pasta before adding the second layer of meat sauce.
Spaghetti Casserole for a Crowd
This Slow Cooker Spaghetti Casserole is great for potlucks and dinner parties. It will serve about 8 people with some salad and bread. This would be great to take to school for teacher appreciation day or a church potluck. I like to make this the day before Thanksgiving and Christmas Eve. I don’t want to fool with cooking before big holiday meals. This casserole is so easy to make and tastes great!
What to Serve with Slow Cooker Spaghetti
This is one of our favorite slow cooker meals. I love how easy it is to make! We love to serve this Slow Cooker Spaghetti Casserole with a salad and some garlic bread. Here are a few of our favorite salad and bread recipes that go great with this yummy Slow Cooker Spaghetti Casserole:
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Parmesan Garlic Monkey Bread Muffins – only 5 ingredients and ready in 10 minutes. Refrigerated biscuits, butter, Italian seasoning, garlic…
Crunchy Romaine Toss
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Creamy Italian Dressing
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Slow Cooker Spaghetti Casserole
Ingredients:
- 1 pound ground beef
- 1 pound Italian sausage, casings removed
- 8- oz uncooked spaghetti, broken into thirds
- 1 (26-oz) jar spaghetti sauce
- 1 (14.5-oz) can petite diced tomatoes, undrained
- ½ cup water
- 1 tsp dried Italian seasoning
- 2 cups shredded cheddar cheese
- ½ cup freshly grated Parmesan cheese
Instructions:
- Cook ground beef and Italian sausage in a large skillet, stirring until crumbled and is no longer pink; drain the meat, and return to skillet. Stir in spaghetti sauce, diced tomatoes, water, and Italian seasoning.
- Spoon half of the meat mixture into a lightly greased 6-qt. slow cooker. Top with broken spaghetti. Spoon remaining half of meat mixture over top.
- Sprinkle with cheddar cheese and Parmesan cheese.
- Cover and cook on Low 4 hours. Let stand 10 minutes before serving.
Notes:
Steph
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Can I use rotini pasta instead of spaghetti noodles?
My guess is yes, but I’ve only made this as written, so I can not say if any adjustments would need to be made.
We usually have a large group with our pot lucks and I probably could get away with doubling every in the recipe but I’m not sure if there would be room in my six quart slow cooker. When you make your single batch, is there enough room for a second batch in your machine? Just trying to get an idea, I don’t like to waste.
I think a double batch would fit in a 6-qt slow cooker.
Made this in my regular oblong slow cooker it was great. We recently received a 9×13 inch ‘casserole’ slow cooker. Do you think this recipe would work in this? Thank You.
Yes – that should work fine.
Would I be able to add sliced Italian sausage instead of ground?
sure
Best way to cook spaghetti. I used mild sausage and ground beef w/ mine it turned out great. Thank you for sharing this recipe
I did realize if pasta is not covered completely by the meat mixture it gets very hard so make sure it is covered. I think that is why it does need to be broken.I also did not like the cheese choice. I used Monterey Jack mix melted better. I used spinach pasta. I only used ground sausage very good.
Can this be frozen after it is cooled?
sure
If I don’t want to cook it on low for four hours, could I cook it on high for two hours?
I followed the recipe and it turned out great! I often come to this website for supper ideas and it don’t disappoint! I have made several of your recipes and they are easy to follow with simple ingredients and everything tastes wonderful!
If you make it the day ahead how do you reheat it? In the crockpot or transfer to another dish or pan and for how long?
What about substituting the spaghetti noodles with lasagna noodles
I haven’t tried this in this recipe. I do have a slow cooker lasagna recipe: Slow Cooker Lasagna
Just wondering if you have every tried making it with frozen meatballs…I am guessing it would alter the cooking time…
Has anyone tried doubling the recipe? I’m wondering if the cooking time has to be extended and for how long?
Have you tried making this the night before and then heating it up in the crockpot the next day? Just wondering how it would do.de
Why do I have to break the spaghetti into thirds. I like to twirl my spaghetti. I would prefer to keep the spaghetti whole if possible.
You don’t have to do anything. It is your kitchen. Make this however you want, dino
I just made this for my family and it was delicious! I’d like to make it ahead of time and just give to my friend (meal train). She’ll need to bake it in the oven instead of the crockpot. Do you have any suggestions? How long should I tell her to cook it and at what temp?
may not fit in your crock if you don’t first break
How much cottage or ricotta cheese would you add?
I would put at least a cup in between the layers on top of the spaghetti
Original recipe doesn’t call for ricotta cheese. Is this just an option?
What about using gluten-free spaghetti?
I have not made this with gluten-free spaghetti, so I can not say with certainty how it would work. If you have had success with gluten-free pasta in the past, you can give it a try. If you do try it, let us know how it works.
Hi Steph can I substitute shredded Italian cheese like mozzarella, parm, romano, etc.? Not a big fan of cheddar.
Absolutely! Enjoy ????