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Close-up of baked cream cheese spaghetti casserole in a white ceramic dish, showing creamy layers, melted cheese, and golden edges under warm natural light.

Baked Cream Cheese Spaghetti Casserole – The Coziest, Cheesiest Weeknight Dinner

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Creamy, cheesy, and bubbling with rich tomato flavor — this baked cream cheese spaghetti casserole is a warm hug in every bite.

  • Total Time: 55 minutes
  • Yield: 6 servings 1x

Ingredients

Scale

12 oz spaghetti
1 lb ground beef or Italian sausage
1 tbsp olive oil
1 small onion, finely chopped
3 cloves garlic, minced
24 oz marinara sauce
1 tsp Italian seasoning
½ tsp red pepper flakes (optional)
Salt and pepper to taste
8 oz cream cheese, softened
½ cup sour cream
¼ cup grated Parmesan cheese
½ cup milk or half-and-half
1 tsp garlic powder
½ tsp onion powder
1 ½ cups shredded mozzarella cheese
2 tbsp fresh parsley, chopped

Instructions

  1. Preheat oven to 350°F (175°C) and grease a 9×13-inch baking dish.

  2. Cook spaghetti until al dente. Drain, toss with a little olive oil, and set aside.

  3. In a skillet, sauté onion in olive oil until soft. Add garlic, then beef; cook until browned. Drain fat.

  4. Stir in marinara sauce, Italian seasoning, red pepper, salt, and pepper. Simmer for 10 minutes.

  5. In a bowl, whisk together cream cheese, sour cream, Parmesan, milk, garlic powder, and onion powder until smooth.

  6. Layer half the spaghetti in the baking dish, then spread the cream cheese mixture over it. Top with remaining spaghetti.

  7. Pour meat sauce over the top evenly, then sprinkle mozzarella cheese.

  8. Cover with foil and bake for 25 minutes. Remove foil and bake another 10–15 minutes until bubbly and golden.

  9. Let rest for 10 minutes. Garnish with parsley and serve warm.

Notes

Substitute Greek yogurt for sour cream for a lighter version.
Add sautéed vegetables like spinach or mushrooms for extra nutrition.
Freeze before baking for a make-ahead meal option.

  • Author: Quinto
  • Prep Time: 15 minutes
  • Cook Time: 40 minutes
  • Category: Dinner
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 portion
  • Calories: 540
  • Sugar: 6g
  • Sodium: 880mg
  • Fat: 28g
  • Saturated Fat: 14g
  • Unsaturated Fat: 10g
  • Trans Fat: 0.5g
  • Carbohydrates: 42g
  • Fiber: 3g
  • Protein: 28g
  • Cholesterol: 85mg