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Spaghetti baked with melted cheese is being lifted from a pan with a serving utensil, showing gooey, stretchy cheese—just like in a classic baked spaghetti casserole.
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Million Dollar Spaghetti Casserole

Million Dollar Spaghetti Casserole is a creamy, cheesy baked pasta dinner with beef marinara and a rich homemade sauce.
Course Main
Cuisine American
Keyword baked spaghetti casserole, Million Dollar Spaghetti Casserole
Prep Time 20 minutes
Cook Time 40 minutes
Total Time 1 hour
Servings 10
Calories 601kcal

Ingredients

  • 1 pound Spaghetti
  • 1 pound Ground beef
  • 2 teaspoons Italian seasoning
  • 2 teaspoons Salt
  • 2 teaspoons Garlic powder
  • 2 teaspoons Onion powder
  • 32 ounces Marinara sauce
  • ¼ cup Butter
  • 2 cups Heavy cream
  • 5 ounces Parmesan cheese finely grated
  • 8 ounces Mozzarella cheese divided
  • ½ teaspoon Black pepper

Instructions

  • Cook spaghetti according to package instructions. Once cooked, drain and set aside.
  • While the spaghetti cooks, start your marinara sauce. Heat a large pot over medium-high heat and add ground beef. Cook for 3-5 minutes until it is browned.
  • Add the Italian seasoning, salt, garlic powder, onion powder, and marinara sauce. Stir together, turn the heat to medium and let cook for another 5 minutes, stirring occasionally.
  • Preheat oven to 350 degrees F. Grease a 13x9-inch baking dish with non-stick spray.
  • Heat a separate large skillet over medium-high heat. Add butter and stir until melted.
  • Pour the heavy cream into the pan and bring it to a simmer over medium heat. Make sure to stir often so the cream doesn’t burn.
  • Stir in the Parmesan and continue to cook until it thickens, approximately 8-10 minutes. You will know it is ready when the sauce is thick enough to coat the back of your spoon.
  • Add 2 ounces of mozzarella cheese and the black pepper. Stir together until the mozzarella is melted.
  • Add the spaghetti noodles to the baking dish and top with the Alfredo sauce. Use a fork to move the noodles around, making sure they are mixed with the sauce.
  • Pour the meat sauce over the pasta, distributing it evenly. Do not mix.
  • Top with the remaining 6 ounces of mozzarella cheese.
  • Place in the oven and bake for 15-20 minutes or until the cheese on top is melted and bubbly.
  • Remove from the oven, let cool for 10 minutes and serve.

Nutrition

Calories: 601kcal | Carbohydrates: 42g | Protein: 28g | Fat: 36g | Saturated Fat: 21g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 10g | Trans Fat: 0.5g | Cholesterol: 123mg | Sodium: 1347mg | Potassium: 611mg | Fiber: 3g | Sugar: 6g | Vitamin A: 1506IU | Vitamin C: 7mg | Calcium: 352mg | Iron: 3mg