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Baked Cream Cheese Spaghetti Casserole

Baked cream cheese spaghetti casserole in a dish, garnished with herbs
A creamy, cheesy pasta dish that's perfect for weeknights or potlucks, combining spaghetti, cream cheese, sour cream, and marinara for an indulgent comfort food experience.
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Serving Size 6 servings

Ingredients

Pasta and Sauces

  • 8 oz spaghetti
  • 1 jar (24 oz) marinara sauce Choose a simple, good-quality marinara for best results.

Cheese Mixture

  • 8 oz cream cheese (softened) Full-fat gives the best texture; low-fat works in a pinch.
  • 1 cup sour cream Can substitute with ricotta (1:1) for a lighter texture.
  • 1 cup shredded mozzarella cheese
  • 1/2 cup grated Parmesan cheese

Seasonings

  • 1/2 teaspoon garlic powder
  • to taste salt and pepper

Garnish

  • Chopped parsley Optional for garnish.

Instructions

Preparation

  • Preheat your oven to 350°F (175°C).
  • Bring a large pot of salted water to a boil. Cook the spaghetti according to package directions until al dente. Drain and set aside.
  • In a large bowl, beat the cream cheese with the sour cream, garlic powder, salt, and pepper until smooth and lump-free.
  • Add the cooked spaghetti and pour in the marinara sauce. Toss everything gently until the pasta is evenly coated.

Baking

  • Grease a baking dish and transfer the pasta mixture into it, spreading it evenly.
  • Sprinkle the shredded mozzarella and grated Parmesan evenly over the top.
  • Bake for 25–30 minutes, until the cheese is bubbly and golden on top.
  • Let the casserole rest for 5 minutes before serving. Finish with chopped parsley, if you like.

Notes

For a heartier twist, add cooked ground beef, Italian sausage, or roasted vegetables. You can also double the recipe, just using a larger dish and expect a few extra minutes of baking time. Best served with a crisp green salad or garlic bread.