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Ultimate Cheesy Baked Spaghetti Alfredo

Welcome to My Kitchen!

If there is one thing that brings everyone running to the dinner table, it is the smell of bubbling cheese and rich garlic cream sauce wafting from the oven. Today, I am sharing a favorite that is guaranteed to become a staple in your meal rotation: my Ultimate Baked Spaghetti Alfredo. It takes the classic, velvety comfort of a traditional alfredo and elevates it by baking it under a golden, irresistible blanket of melted cheese.

Golden, bubbly perfection straight out of the oven and ready to be devoured.

Why You Will Love This Comforting Classic

Life gets busy, but sitting down to a hearty, home-cooked meal in your own kitchen should never be complicated. This recipe is the perfect solution for those evenings when you just want something warm and deeply satisfying. Unlike standard stovetop pasta that can sometimes dry out or cool down too quickly, baking this dish locks in all the incredible moisture and flavor.

The heavy cream, butter, and parmesan meld together into a luscious sauce that perfectly coats every single strand of spaghetti. Then, the oven does its magic, turning the cheese topping into a slightly crispy, gooey masterpiece that stretches beautifully when you dig in. It is pure, unadulterated comfort food!

Breaking through that crispy, baked mozzarella layer is arguably the best part of the whole meal.

The Secret to the Perfect Cheese Pull

Let’s talk about the absolute best part of this dish—that magnificent baked cheese crust. While the creamy alfredo sauce inside is rich and deeply flavorful, the topping is where the real visual magic happens. For the ultimate stretch, I always recommend using a generous layer of freshly shredded mozzarella.

Pre-shredded cheeses in bags often contain anti-caking agents that prevent them from melting smoothly. Taking a few extra minutes to grate a fresh block of cheese right on your countertop makes all the difference in the world. When your fork breaks through that top layer, you want that dramatic, mouth-watering cheese pull to be absolutely perfect!

Every single strand of pasta is perfectly coated in our rich and creamy homemade alfredo sauce.

What to Serve With Your Baked Pasta

Because this baked spaghetti alfredo is such a rich and decadent main course, I love to keep the side dishes bright and simple. A crisp green salad tossed with a light lemon vinaigrette cuts through the richness beautifully and adds a fresh crunch to the meal.

And of course, you absolutely cannot forget a thick slice of toasted garlic bread to mop up any extra creamy sauce left on your plate! Grab your favorite baking dish, preheat your oven, and let’s get cooking. Scroll down to the recipe card below for all the exact measurements and simple step-by-step instructions.

Ultimate Cheesy Baked Spaghetti Alfredo

Prep Time 15 minutes
Cook Time 25 minutes
Servings: 6

Ingredients
  

  • 16 oz spaghetti
  • 1/2 cup (1 stick) unsalted butter
  • 2 cups heavy whipping cream
  • 4 oz cream cheese, softened
  • 1 1/2 cups freshly grated Parmesan cheese, divided
  • 1 tsp garlic powder
  • 1.2 tsp Italian seasoning
  • Salt and black pepper to taste
  • 2 cups shredded whole milk mozzarella cheese
  • 2 tbsp fresh parsley, finely chopped (for garnish)

Method
 

  1. Preheat and Prep: Preheat your oven to 375°F (190°C). Lightly grease a 9x13 inch baking dish.
  2. Boil Pasta: Cook the spaghetti in a large pot of salted boiling water according to package instructions until al dente. Drain well and set aside.
  3. Make the Sauce: In a large, deep skillet or Dutch oven, melt the butter over medium heat. Whisk in the heavy cream and cream cheese until smooth and simmering.
  4. Add Flavor: Stir in 1 cup of the grated Parmesan cheese, garlic powder, Italian seasoning, salt, and pepper. Continue whisking gently until the sauce thickens slightly and the cheese is fully melted.
  5. Combine: Add the drained spaghetti directly into the skillet with the alfredo sauce. Toss thoroughly until every strand of pasta is generously coated in the cream sauce.
  6. Assemble to Bake: Transfer the creamy spaghetti mixture into your prepared baking dish, spreading it out into an even layer.
  7. Top with Cheese: Sprinkle the remaining 1/2 cup of Parmesan cheese and the 2 cups of shredded mozzarella evenly over the top of the pasta.
  8. Bake: Bake uncovered for 20-25 minutes, or until the edges are bubbly and the mozzarella cheese is melted and starting to turn golden brown. For an extra crispy crust, broil on high for the last 2 minutes (watch closely so it doesn't burn!).
  9. Garnish and Serve: Remove from the oven and let it rest for 5 minutes. Garnish with freshly chopped parsley before serving with a side of garlic bread.

Notes

Cheese Tip: For the best melt and the ultimate "cheese pull," always shred your own mozzarella from a block rather than using pre-bagged shredded cheese.
Storage: Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently in the microwave or oven with a splash of milk to loosen the sauce.

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