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Introduction
Slow Cooker Cheesy Spaghetti is a hearty, comforting dish that brings together the best flavors of a classic spaghetti dinner, with the added richness of gooey melted cheese. This one-pot meal is perfect for busy weeknights when you want a delicious, home-cooked dinner without spending too much time in the kitchen. The slow cooker does all the work for you, blending pasta, tomato sauce, and cheese into a creamy, flavorful dish that’s bound to become a family favorite. Whether you’re cooking for a crowd or just preparing a simple weeknight dinner, this dish will deliver the ultimate cheesy satisfaction.
Perfect for:
- Family dinners
- Weeknight meals
- Potlucks and gatherings
- Comfort food lovers
- Busy cooks
Why You’ll Love This Recipe
Here’s why Slow Cooker Cheesy Spaghetti will become a staple in your meal rotation:
- Minimal Effort, Maximum Flavor: With a few simple ingredients and minimal prep, you can make a hearty and flavorful meal that’s ready when you are.
- Cheesy Goodness: This recipe is loaded with cheese, creating a creamy, cheesy sauce that envelops each strand of pasta in a delightful, melty coating.
- Comforting and Hearty: Spaghetti, in all its cheesy glory, is the epitome of comfort food. It’s warm, filling, and satisfying.
- Versatile: This dish can be customized to suit your preferences. Add in veggies, swap out cheeses, or add your favorite protein to make it your own.
- Slow Cooker Convenience: Toss everything into the slow cooker and let it do the work. There’s no need to worry about stirring or timing — just set it and forget it!
Preparation and Cooking Time
- Total Time: 4 hours 15 minutes
- Preparation Time: 15 minutes
- Cooking Time: 4 hours (on low) or 2 hours (on high)
- Servings: 6-8 servings
- Calories per Serving: Approximately 450-500 calories
- Key Nutrients: Protein: 20g, Carbs: 50g, Fat: 22g
Ingredients
Here’s what you’ll need to make the creamy, cheesy goodness of Slow Cooker Cheesy Spaghetti:
- 1 pound (450g) ground beef or chicken (optional)
- 1 jar (24 ounces) marinara sauce or your favorite tomato sauce
- 1 can (14.5 ounces) diced tomatoes, drained
- 1 medium onion, chopped
- 2 teaspoons minced garlic
- 1 teaspoon dried oregano
- 1 teaspoon dried basil
- ½ teaspoon salt
- ½ teaspoon black pepper
- 8 ounces (225g) uncooked spaghetti (broken in half)
- 2 cups shredded mozzarella cheese
- 1 cup grated Parmesan cheese
- 1 cup heavy cream or whole milk (for a lighter version)
- ½ cup cream cheese (optional, for extra creaminess)
Ingredient Highlights
- Ground Beef or Chicken: Adding ground beef or chicken provides protein and a savory depth of flavor. You can easily swap this for a vegetarian option, such as adding extra vegetables or plant-based protein.
- Marinara Sauce and Diced Tomatoes: These are the base for the sauce, adding tang and sweetness that complement the creamy cheese perfectly.
- Cheese: The combination of mozzarella, Parmesan, and cream cheese makes for a melt-in-your-mouth creamy and cheesy pasta dish.
- Cream or Milk: These add richness and smoothness to the sauce, making it extra indulgent.
Step-by-Step Instructions
Follow these easy steps to prepare your Slow Cooker Cheesy Spaghetti:
Prepare the Meat (If Using):
- Cook the Ground Meat: In a skillet, cook the ground beef or chicken over medium heat until browned. Drain any excess fat. If you’re skipping the meat, move on to the next step.
- Add Garlic and Onion: Add the chopped onion and garlic to the meat, cooking until softened and fragrant, about 3-5 minutes.
Assemble the Slow Cooker Ingredients:
- Layer in the Slow Cooker: Transfer the cooked meat mixture (or just the garlic and onions if you’re going vegetarian) into your slow cooker. Add the marinara sauce, diced tomatoes, oregano, basil, salt, and pepper. Stir everything together.
- Add the Spaghetti: Break the uncooked spaghetti in half and add it to the slow cooker, pressing it down gently into the sauce. Don’t worry about the pasta not being fully submerged—it will cook perfectly as the sauce simmers.
- Pour in the Cream: Add the heavy cream (or milk) and cream cheese (if using) to the mixture, stirring to combine. The cream will help make the sauce silky and rich.
Cook the Dish:
- Slow Cook: Cover the slow cooker and cook on low for 4 hours or on high for 2 hours. You’ll want to check around the 2-hour mark if using the high setting to make sure the pasta is tender and the sauce is well combined.
- Stir Occasionally: If you have time, stir the dish halfway through cooking to ensure the pasta cooks evenly and doesn’t stick to the sides.
Add the Cheese:
- Add the Cheese: Once the pasta is cooked, sprinkle the shredded mozzarella and grated Parmesan cheese over the top. Stir the cheese into the pasta until it’s completely melted and the sauce becomes creamy.
Serve:
- Serve Hot: Once the cheese has melted and the sauce is creamy, it’s time to serve your Slow Cooker Cheesy Spaghetti! Spoon the pasta onto plates, top with extra cheese or herbs if desired, and enjoy!

How to Serve Slow Cooker Cheesy Spaghetti
Slow Cooker Cheesy Spaghetti is a complete meal in itself, but here are a few ideas for serving:
- With Garlic Bread: Serve with crispy, buttery garlic bread on the side to scoop up any extra sauce.
- With a Fresh Salad: Pair with a simple green salad for a refreshing contrast to the cheesy pasta.
- Top with Fresh Basil or Parsley: For a touch of freshness and color, garnish with freshly chopped basil or parsley.
- Serve with Grilled Vegetables: Roasted or grilled vegetables such as bell peppers, zucchini, or broccoli make for a great side dish.
Additional Tips for Slow Cooker Cheesy Spaghetti
Here are some tips to elevate your Slow Cooker Cheesy Spaghetti:
- Use Fresh Ingredients: If you can, opt for fresh garlic and onions. Fresh ingredients will enhance the flavors and give the dish a more robust taste.
- Don’t Overcook the Pasta: Since the pasta cooks in the slow cooker, it can get mushy if left for too long. Be sure to follow the recommended cooking times and check occasionally to ensure it’s cooked to your liking.
- Customize the Sauce: If you like a spicier sauce, add some crushed red pepper flakes or a splash of hot sauce. For a more savory flavor, consider adding some Italian sausage or a mix of different cheeses.
- Add Vegetables: Add sliced mushrooms, spinach, bell peppers, or any of your favorite vegetables to the dish for extra flavor and nutrition.
- Make It a Casserole: After the pasta is cooked, you can transfer it to a baking dish, top with extra cheese, and bake it in the oven for 15 minutes for a bubbly, crispy topping.
Recipe Variations of Slow Cooker Cheesy Spaghetti
Here are 10 variations of Slow Cooker Cheesy Spaghetti that you can try:
- Chicken Alfredo Spaghetti: Use Alfredo sauce in place of marinara sauce for a creamy, rich dish with tender chicken.
- Vegetarian Cheesy Spaghetti: Skip the meat and add more vegetables, such as spinach, mushrooms, and zucchini, for a filling, vegetarian-friendly version.
- Meatball Spaghetti: Add homemade or store-bought meatballs to the slow cooker for a classic meatball spaghetti twist.
- Pesto Cheesy Spaghetti: Stir in a couple of tablespoons of pesto for a fresh, herbaceous flavor that pairs beautifully with the cheese.
- Buffalo Chicken Cheesy Spaghetti: Add cooked, shredded buffalo chicken and a bit of blue cheese for a spicy, tangy variation.
- Mexican Cheesy Spaghetti: Add taco seasoning and swap out marinara for salsa, then top with sour cream and chopped cilantro.
- Baked Cheesy Spaghetti: After cooking in the slow cooker, transfer the pasta to a baking dish, top with extra cheese, and bake for 10-15 minutes until golden and bubbly.
- Spinach and Ricotta Spaghetti: Stir in ricotta cheese and fresh spinach for a lighter, more refined version of cheesy spaghetti.
- Cheesy Bacon Spaghetti: Add crispy, crumbled halal beef bacon to the slow cooker for a smoky flavor (without any pork).
- Mushroom and Swiss Spaghetti: Use Swiss cheese and add sautéed mushrooms for an earthy, creamy dish.
Freezing and Storage for Slow Cooker Cheesy Spaghetti
- Freezing: Slow Cooker Cheesy Spaghetti freezes well. Allow it to cool completely, then store it in an airtight container or freezer bag. It can be frozen for up to 3 months. To reheat, thaw in the refrigerator overnight and warm it in the microwave or oven until heated through.
- Storage: Store leftovers in an airtight container in the fridge for up to 3-4 days. The pasta may absorb some of the sauce, but you can add a little milk or cream when reheating to bring it back to its creamy texture.
Special Equipment for Slow Cooker Cheesy Spaghetti
Here are a few items that can make preparing Slow Cooker Cheesy Spaghetti easier:
- Slow Cooker: A 4-6 quart slow cooker is ideal for this recipe, providing enough space to cook the pasta and sauce without overcrowding.
- Wooden Spoon: A wooden spoon is gentle on your slow cooker and perfect for stirring the pasta and sauce without scratching the surface.
- Measuring Cups and Spoons: Accurate measurements help ensure the right proportions of ingredients for a balanced flavor.
- Skillet: A skillet is needed for browning the meat and sautéing the garlic and onions.
- Airtight Storage Containers: These are essential for storing leftovers and keeping your meal fresh.
FAQ Section about Slow Cooker Cheesy Spaghetti
- Can I use gluten-free pasta? Yes, gluten-free pasta works perfectly in this recipe. Just be sure to follow the cooking instructions for the specific pasta you’re using, as it may cook faster than regular pasta.
- Can I make this recipe vegetarian? Absolutely! Simply omit the meat and add extra vegetables, or try a meat substitute for a filling, meatless version.
- Can I use pre-cooked spaghetti? While uncooked spaghetti is ideal for this recipe, you can use pre-cooked pasta. If you do, reduce the cooking time and add the pasta in the last 30 minutes of cooking to avoid overcooking.
- Can I use a different cheese? Yes! Feel free to experiment with different cheeses such as cheddar, gouda, or provolone for a unique flavor.
- Can I make this dish ahead of time? Yes, you can assemble the dish the night before, refrigerate it, and then cook it in the slow cooker the next day. It’s an excellent make-ahead meal.
Conclusion of Slow Cooker Cheesy Spaghetti
Slow Cooker Cheesy Spaghetti is a simple yet incredibly satisfying meal that everyone will love. With its creamy, cheesy sauce and tender pasta, this dish delivers on flavor and comfort. Whether you’re preparing dinner for your family, feeding a crowd, or looking for a make-ahead meal, this recipe is sure to please. It’s easy to customize and incredibly convenient, making it a must-try for any busy cook. Enjoy!