Throw sauce, pasta, and all the ingredients in the slow cooker and out comes a cheesy spaghetti casserole!
Ingredients
- 2 teaspoons olive oil
- 1 pound ground beef
- 1 pound ground Italian sausage
- 1 cup onion diced
- 3 cloves garlic minced
- 24 ounces marinara sauce 1 standard jar
- 1 cup water
- 14 ounces diced tomatoes 1 standard can
- 2 teaspoons Italian seasoning
- ½ teaspoon kosher salt
- ¼ teaspoon black pepper
- Pinch granulated sugar
- 8 ounces spaghetti noodles broken into thirds
- 1 ½ cups shredded mozzarella
Recommended Equipment
- Crockpot (click for my favorite)
Instructions
- In a large skillet set over medium-high heat, heat oil. Add ground beef, sausage, and onion and cook 5-6 minutes, until beef is cooked through, crumbling with a spoon as you cook. Drain any excess grease and return it to the skillet.2 teaspoons olive oil,1 pound ground beef,1 pound ground Italian sausage,1 cup onion
- Add the garlic and cook for 1 minute, until fragrant. Stir in the marinara sauce, pouring the water into the jar and swishing it around to remove any excess sauce, then add that to the skillet. Add diced tomatoes, Italian seasoning, salt, pepper, and sugar, stirring to combine.3 cloves garlic,24 ounces marinara sauce,14 ounces diced tomatoes,2 teaspoons Italian seasoning,½ teaspoon kosher salt,¼ teaspoon black pepper, Pinch granulated sugar,1 cup water
- Transfer the mixture to the crock of a 6-quart slow cooker.
- Top with broken spaghetti and stir together.8 ounces spaghetti noodles
- Top with mozzarella, cover, and cook on low for 4 hours.1 ½ cups shredded mozzarella
- Serve garnished with grated Parmesan and fresh parsley or basil.

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