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Baked Cream Cheese Spaghetti Casserole

A comforting casserole that combines spaghetti noodles with cream cheese, savory beef-marinara sauce, and a cheesy topping, perfect for weeknight dinners or potlucks.
Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Course Dinner, Main Course
Cuisine Italian
Servings 6 servings
Calories 400 kcal

Ingredients
  

Pasta and Cheeses

  • 12 oz spaghetti noodles Use regular or whole wheat spaghetti.
  • 8 oz cream cheese Soften to room temperature for easier mixing.
  • 1/4 cup sour cream Can substitute with plain Greek yogurt.
  • 1 cup shredded mozzarella cheese Shred block cheese for best melting.
  • 1 cup shredded cheddar cheese Shred block cheese for best melting.

Meat Sauce

  • 1 lb ground beef 85/15 works well.
  • 2 cups marinara sauce Store-bought or homemade.
  • 1 tbsp olive oil
  • 1 tsp garlic powder
  • 1 tsp Italian seasoning
  • Salt and black pepper To taste.

Garnish

  • 2 tbsp fresh parsley, chopped Optional garnish.

Instructions
 

Preparation

  • Preheat the oven to 350°F (175°C). Lightly grease a 9x13-inch baking dish.
  • Cook the spaghetti in salted boiling water according to package directions until al dente. Drain thoroughly and set aside.
  • While the pasta cooks, heat the olive oil in a skillet over medium heat. Add the ground beef and break it up with a spoon. Cook until browned and no pink remains, about 6–8 minutes.
  • Season the beef with garlic powder, Italian seasoning, salt, and pepper.
  • Pour the marinara into the skillet with the beef. Stir to combine and let the sauce simmer for 4–5 minutes to meld flavors.
  • In a large mixing bowl, beat the softened cream cheese and sour cream together until smooth and lump-free.
  • Add the drained spaghetti to the cream cheese mixture. Toss gently until each strand is coated evenly. If the mixture feels very thick, add a splash of the reserved pasta water to loosen it.

Assembly

  • Spread the creamy spaghetti in an even layer in the prepared baking dish.
  • Spoon the meat-marinara sauce over the top, covering the noodles.
  • Sprinkle the shredded mozzarella and cheddar evenly over the sauce.

Baking

  • Bake uncovered for 25–30 minutes, or until the cheese is melted, bubbling, and starting to turn golden at the edges.
  • Let rest 5–10 minutes before serving so slices set slightly. Garnish with chopped parsley if desired.

Notes

Store leftovers in an airtight container for up to 4 days. Can freeze for up to 2 months. Cream cheese texture may change after freezing, but flavor is still great. Serve with salad or bread.
Keyword Beef and Cheese Casserole, Cream Cheese Casserole, Family Recipe, Spaghetti Bake, Weeknight Dinner