Why Make This Recipe

Slow Cooker Spaghetti Casserole is a great meal for busy families or anyone looking for a delicious and filling dish. It combines the comforting flavors of spaghetti and meat sauce with the ease of slow cooking. This recipe is not only simple to prepare, but it also allows the flavors to develop beautifully over time. Plus, the melted cheese on top makes it even more irresistible!

How to Make Slow Cooker Spaghetti Casserole

Ingredients:

• 1 lb ground beef
• 1 medium onion, diced
• 2 garlic cloves, minced
• 24 oz jar marinara sauce
• 1 (14.5 oz) can diced tomatoes, drained
• 1 (8 oz) can tomato sauce
• 1 tsp dried basil
• 1 tsp dried oregano
• 1/2 tsp red pepper flakes (optional)
• Salt and pepper, to taste
• 8 oz uncooked spaghetti, broken in half
• 2 cups shredded mozzarella cheese
• 1/2 cup grated Parmesan cheese
• 1/4 cup chopped fresh parsley (optional, for garnish)

Directions:

1. In a skillet over medium heat, brown the ground beef with the diced onion and garlic. Drain any excess fat.
2. In a slow cooker, combine the cooked ground beef mixture, marinara sauce, diced tomatoes, tomato sauce, basil, oregano, red pepper flakes (if using), salt, and pepper. Stir to combine.
3. Break the uncooked spaghetti into halves and add it to the slow cooker, stirring gently to ensure the pasta is submerged in the sauce.
4. Cover the slow cooker and cook on low for 3–4 hours or until the pasta is tender and cooked through. Stir halfway through the cooking time to ensure the pasta cooks evenly.
5. About 15 minutes before serving, sprinkle the mozzarella and Parmesan cheeses on top of the casserole. Cover and cook until the cheese is melted and bubbly.
6. Garnish with chopped parsley, if desired, and serve warm.

How to Serve Slow Cooker Spaghetti Casserole

Serve the Slow Cooker Spaghetti Casserole warm straight from the pot. It goes well with a simple green salad or garlic bread. You can also add extra grated cheese on top for those who love cheesy dishes.

How to Store Slow Cooker Spaghetti Casserole

To store leftovers, let the casserole cool completely, then transfer it to an airtight container. Keep it in the refrigerator for up to 3 days. You can also freeze it for longer storage; just make sure to use a freezer-safe container. When ready to eat, reheat in the microwave or oven.

Tips to Make Slow Cooker Spaghetti Casserole

• If you like your casserole a bit spicier, add more red pepper flakes or even some chopped jalapeños.
• Experiment with different types of cheese like cheddar or pepper jack for a fun twist.
• You can also sneak in some veggies, like bell peppers or mushrooms, for added nutrition.

Variation

For a lighter version, use ground turkey instead of beef. You can also use whole wheat spaghetti for a healthier choice. If you want a vegetarian option, swap out the meat for black beans or lentils.

FAQs

Can I use pre-cooked spaghetti in this recipe?
Yes, but pre-cooked spaghetti may not absorb the sauce as well. It’s best to use uncooked pasta for the best texture.

How long does it take to cook in a slow cooker?
Cook the casserole on low for 3–4 hours until the pasta is tender.

Can I prepare this casserole the night before?
Absolutely! You can assemble everything in the slow cooker insert the night before and place it in the fridge. Just take it out in the morning and start cooking.