Slow Cooker Spaghetti Casserole

This Slow Cooker Spaghetti Casserole is layered with rich meaty sauce, noodles, and lots of cheese. It’s seriously the best way to eat spaghetti!

Rate The Recipe⭐⭐⭐⭐⭐

I appreciate your comments and reviews! Be sure to leave a comment or rating below for suggestions, questions, or if you make the recipe. I’d love to know how it turned out for you!

Guys, I have never Mmmmm’ed over a plate of spaghetti like I have this Slow Cooker Spaghetti Casserole. I have to admit, I had a little anxiety over whether or not the noodles would turn out okay after being slow cooked for hours. Nobody likes mushy spaghetti noodles. This slow cooked spaghetti not only comes out fantastic, but it’s probably some of the best tasting spaghetti I’ve ever had! Giving the noodles a chance to slow cook with the meat sauce infuses so much flavor in the starchy flavored pasta which is why this is so yummy.

The convenience of slow cooker spaghetti is you don’t have to babysit the meat sauce and noodles like you would if it was cooked on the stove. This saves time and effort, and the flavors only get better as it has time to cook low and slow. I also love how simple the ingredients are. I use basic pantry staples, and a special seasoning for the best spaghetti casserole.

You’ll never guess my special ingredient For The Best Slow Cooker Spaghetti.

I call these “flavor boosters” and it’s a fast way to add a lot of flavor and still keep the ingredients list short. Seasonings are my best friend when I’m creating a recipe and one I use often is ranch seasoning mix. What?! Who puts ranch in spaghetti? I do! It has everything that counts like garlic powder, onion powder, parsley and chives. You won’t even know it’s in there other than the spaghetti casserole will taste amazing!

Ingredients For Slow Cooker Spaghetti Casserole:

• Lean ground beef or turkey
• Ground Italian turkey sausage
• Spaghetti
• Favorite jarred pasta sauce
• Crushed tomatoes
• Water
• Ranch seasoning mix
• Italian seasoning
• Black pepper
• Mozzarella cheese
• Cheddar cheese
• Fresh parsley

Step by Step Slow Cooker Spaghetti Casserole:

Step 1. In a large skillet cook ground beef and sausage until no longer pink. Drain excess grease and add seasonings, pasta sauce, crushed tomatoes and water. Stir to combine.

Step 2. Spray slow cooker with non-stick cooking spray and add half of the meat sauce. Break spaghetti noodles in half or in thirds and scatter on top of the meat sauce. Add mozzarella cheese and the remaining meat sauce, then top with more mozzarella and cheddar cheese. Cook on low for 4 1/2 hours. Top with fresh parsley and serve!

Pro Tips:

• Make sure you have a large enough slow cooker for spaghetti casserole. A 6 QT or larger works great.
• Stir meat sauce and uncooked noodles before slow cooking. Doing this will just combine everything and you won’t have the layers of noodles, cheese, and meat sauce like a casserole style dish. Either way will result in a delicious meal.
• Add other cheeses like ricotta, parmesan, pepper jack for heat, or other favorite cheeses you love.
• Leftover spaghetti is always the best and you can enjoy this for 3-4 days after it is cooked. Store in an airtight container and keep in the refrigerator.

Other Slow Cooker Meals You Might Enjoy:

• Island Slow Cooker Chicken
• Slow Cooker Beef Stew
• Slow Cooker Beef Chili

Let’s eat!

Slow Cooker Spaghetti Casserole

The Menu Maid

This Slow Cooker Spaghetti Casserole is layered with rich meaty sauce, noodles, and lots of cheese. It's seriously the best way to eat spaghetti!

5 from 2 votes

Print Recipe Pin Recipe

Prep Time 10 minutes mins

Cook Time 4 hours hrs 30 minutes mins

Total Time 4 hours hrs 40 minutes mins

Course Dinner

Cuisine Italian

Servings 5

Calories 535 kcal

Equipment

• 1 6 Qt Slow Cooker
• 1 large skillet

Ingredients

  

• 1 lb lean ground beef or turkey
• 1/2 lb Italian ground turkey sausage
• 8 ounces spaghetti noodles broken in half or in thirds
• 1 tbsp ranch seasoning mix, store bought or homemade see notes for homemade
• 1 tsp Italian seasoning
• 1/2 tsp black pepper
• 1 (24) ounce jar favorite spaghetti sauce
• 1 (15) ounce can crushed tomatoes
• 1/2 cup water
• 1 cup shredded mozzarella cheese, divided
• 1/2 cup shredded cheddar cheese
• fresh parsley for garnish

Instructions

 

• In a large skillet on medium high heat cook ground beef and turkey sausage, breaking into crumbles until no longer pink. Remove any excess grease.
• To the cooked meat add the seasonings, pasta sauce, tomatoes, and water. Stir to combine and remove from the heat.
• Spray slow cooker with non-stick cooking spray then add half of the meat sauce to the bottom of the pot. Use the back of a spoon to spread out evenly. Scatter noodles over the top of the meat sauce, then top with 1/2 cup mozzarella cheese, the remaining meat sauce, and finally the rest of the cheese. Place the lid on and cook on low for 4 1/2 hours or until noodles are tender. Top with fresh parsley and serve.

Notes

Tips:

 

• Make sure you have a large enough slow cooker for spaghetti casserole. A 6 QT or larger works great.
• Stir meat sauce and uncooked noodles before slow cooking. Doing this will just combine everything and you won’t have the layers of noodles, cheese, and meat sauce like a casserole style dish. Either way will result in a delicious meal.
• Add other cheeses like ricotta, parmesan, pepper jack for heat, or other favorite cheeses you love.
• Leftover spaghetti is always the best and you can enjoy this for 3-4 days after it’s cooked. Store in an airtight container and keep in the refrigerator.
• Homemade ranch seasoning mix- Visit https://themenumaid.com/homemade-ranch-seasoning-mix-dairy-free/ for full recipe

 

 

Nutritional information is provided as a courtesy only and should be understood as an estimate rather than a guarantee. The Menu Maid makes no guarantees to the accuracy of this information.

 

Nutrition Facts
Servings: 5
Amount per serving
Calories	535
% Daily Value*
Total Fat 17.8g	23%
Saturated Fat 6.4g	32%
Cholesterol 149mg	50%
Sodium 1396mg	61%
Total Carbohydrate 45.3g	16%
Dietary Fiber 5.1g	18%
Total Sugars 15.9g
Protein 47g
Vitamin D 1mcg	7%
Calcium 140mg	11%
Iron 21mg	116%
Potassium 906mg	19%

Keyword Casseroles, Cheese, Crock pot meals, Ground beef, pasta, slow cooker, Spaghetti, Spaghetti noodles, Spaghetti sauce, tomatoes, turkey sausage

Note: Some of the links on my website are affiliate links. This means if you click on the link and purchase the item, I will receive an affiliate commission at no extra charge to you.