Million Dollar Spaghetti Casserole

This easy Million Dollar Spaghetti casserole is a creamy, cheesy baked pasta recipe made with just four simple ingredients. Tender spaghetti is tossed with cream cheese and mozzarella, layered with rich marinara sauce, then baked until hot, bubbly, and golden on top.

Perfect for busy weeknights, Sunday dinners, potlucks, and holiday meals, this oven baked spaghetti casserole delivers comforting Italian-inspired flavor without a complicated ingredient list. It is budget-friendly, filling, and easy to customize with vegetables or ground beef if desired.

Why You’ll Love This Million Dollar Spaghetti Recipe

• Made with only four everyday ingredients
• A comforting and affordable family dinner
• Great for potlucks, Easter meals, and Sunday supper
• Easy to prepare ahead of time
• Kid-friendly, cheesy, and satisfying
• Leftovers reheat beautifully for lunch or dinner

Servings: 8
Prep Time: 15 minutes
Cook Time: 30 to 35 minutes
Total Time: About 50 minutes

Ingredients

• 1 pound dried spaghetti
• 1 jar marinara sauce or spaghetti sauce, about 24 to 26 ounces
• 1 block cream cheese, softened, 8 ounces
• 3 cups shredded mozzarella cheese, divided

Instructions

1. Preheat the oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish with butter or cooking spray.
2. Bring a large pot of salted water to a boil. Cook the spaghetti until just al dente, about 1 to 2 minutes less than the package directions. Drain well.
3. Return the warm spaghetti to the pot. Add the softened cream cheese and 1 cup of shredded mozzarella. Toss gently until the pasta is coated and the cheese begins to melt.
4. Spread half of the marinara sauce over the bottom of the prepared baking dish.
5. Add half of the cheesy spaghetti mixture over the sauce. Spoon the remaining marinara sauce over the pasta, then sprinkle with 1 cup of mozzarella cheese.
6. Add the remaining spaghetti mixture and spread it evenly. Top with the final cup of mozzarella cheese.
7. Cover loosely with foil and bake for 20 minutes.
8. Remove the foil and bake for another 10 to 15 minutes, until the cheese is melted, bubbly, and lightly golden.
9. Let the baked million dollar spaghetti rest for 10 minutes before serving. This helps the casserole set and makes it easier to scoop.

Serving Suggestions

Serve this cheesy spaghetti bake with garlic bread, buttered dinner rolls, or a crisp green salad. Steamed green beans, roasted broccoli, or a simple cucumber salad are also great side dishes because they balance the rich and creamy pasta.

For a family-style meal, place the casserole in the center of the table with grated Parmesan cheese and red pepper flakes on the side.

Easy Variations and Helpful Tips

For a heartier million dollar spaghetti with ground beef, cook 1 pound of ground beef or ground turkey, drain it well, and mix it into the marinara sauce before layering.

To add vegetables, stir sautéed mushrooms, spinach, bell peppers, or zucchini into the sauce. For extra flavor, use a garlic marinara sauce or an Italian cheese blend instead of part of the mozzarella.

This recipe is also freezer-friendly. Assemble the casserole in a freezer-safe dish, cover tightly, and freeze before baking for up to 2 months. Thaw overnight in the refrigerator, then bake until hot and bubbly.

Store leftover spaghetti casserole in an airtight container in the refrigerator for up to 3 to 4 days. Reheat until hot throughout before serving.