Slow Cooker Spaghetti Casserole

Turn your classic spaghetti dinner into an effortless one-pot wonder with this Slow Cooker Spaghetti Casserole. Combining the rich, comforting flavors of spaghetti with the convenience of a slow cooker, this dish is perfect for busy weeknights or relaxed weekends. With tender pasta, a meaty sauce, and gooey cheese, it’s guaranteed to be a family favorite.

Ingredients

For the Sauce:

• 1 pound ground beef or Italian sausage
• 1 small onion, finely chopped
• 3 cloves garlic, minced
• 1 jar (24 ounces) marinara sauce
• 1 can (14.5 ounces) diced tomatoes, undrained
• 1 teaspoon dried basil
• 1 teaspoon dried oregano
• ½ teaspoon red pepper flakes (optional, for a bit of heat)
• Salt and pepper to taste

For the Casserole:

• 12 ounces uncooked spaghetti (break in half)
• 2 cups water or chicken broth
• 1 cup ricotta or cottage cheese
• 1 cup shredded mozzarella cheese
• ½ cup grated Parmesan cheese

For Topping:

• 1 cup shredded mozzarella cheese
• 2 tablespoons chopped fresh parsley (optional)

Instructions

1. Prepare the Sauce

1. In a skillet over medium heat, cook the ground beef or sausage until browned and fully cooked. Drain any excess fat.
2. Add the chopped onion and garlic to the skillet. Sauté for 2–3 minutes until softened and fragrant.
3. Stir in the marinara sauce, diced tomatoes, basil, oregano, and red pepper flakes (if using). Season with salt and pepper. Simmer for 5 minutes, then remove from heat.

2. Layer the Casserole in the Slow Cooker

1. Lightly grease the inside of a 6-quart slow cooker with nonstick cooking spray.
2. Spread a thin layer of the meat sauce on the bottom of the slow cooker.
3. Add a layer of uncooked spaghetti (broken into halves to fit evenly).
4. Top with a dollop of ricotta or cottage cheese, a sprinkle of mozzarella, and a bit of Parmesan.
5. Repeat the layers (sauce, spaghetti, cheeses) until all ingredients are used, ending with a layer of sauce.
6. Pour the water or chicken broth evenly over the casserole.

3. Cook the Casserole

1. Cover the slow cooker and cook on LOW for 4–5 hours or until the pasta is tender. Avoid opening the lid too often during cooking.

4. Add the Final Touch

1. In the last 15 minutes of cooking, sprinkle 1 cup of shredded mozzarella cheese on top of the casserole.
2. Cover and let the cheese melt.

5. Serve and Garnish

1. Once the casserole is cooked, let it sit for 5–10 minutes to firm up slightly.
2. Garnish with fresh parsley, if desired, and serve hot.

Tips for Success

1. Avoid Overcooking: Check the pasta at the 4-hour mark to ensure it’s not overcooked. Cooking time can vary depending on your slow cooker.
2. Cheese Options: Feel free to swap ricotta with cottage cheese or mascarpone for a creamier texture.
3. Add Veggies: Incorporate diced bell peppers, mushrooms, or spinach into the sauce for extra nutrition and flavor.
4. Make It Spicy: Add sliced jalapeños or a dash of hot sauce for a kick of heat.

Recipe Variations

• Vegetarian Version: Replace the meat with sautéed vegetables like zucchini, eggplant, or mushrooms.
• Gluten-Free Option: Use gluten-free pasta. Adjust cooking time as gluten-free pasta tends to cook faster.
• Creamy Twist: Stir in ½ cup of heavy cream to the sauce for a richer flavor.

FAQs

Q: Can I make this recipe ahead of time?
A: Yes! You can assemble the layers in the slow cooker, cover it, and refrigerate for up to 24 hours. When ready to cook, bring the slow cooker to room temperature before turning it on.

Q: Can I freeze leftovers?
A: Absolutely! Let the casserole cool completely, then portion it into airtight containers. Freeze for up to 3 months. Reheat in the microwave or oven until warmed through.

Q: Can I use a different type of pasta?
A: Yes! Penne, rotini, or ziti work well in place of spaghetti. Adjust the liquid and cooking time as needed.

Why You’ll Love This Recipe

• Effortless: With minimal prep and the magic of a slow cooker, dinner practically makes itself.
• Customizable: Easily adapt the ingredients to suit your family’s preferences.
• Comfort Food: The combination of tender pasta, savory sauce, and melted cheese is a guaranteed crowd-pleaser.

Slow Cooker Spaghetti Casserole is a stress-free way to enjoy the comforting flavors of a classic Italian dish with a modern twist. Whether it’s for a busy weeknight meal or a relaxed family gathering, this recipe delivers big on flavor with minimal effort. Serve it with a side of garlic bread and a fresh green salad for a complete and satisfying meal