Boil the spaghetti noodles until al dente according to package instructions. Drain and set aside. The noodles will absorb the sauce flavors during baking.
While the pasta cooks, brown the ground beef in a skillet. Drain excess grease, then stir in the marinara sauce for a rich, flavorful layer.
In a baking dish, layer half the spaghetti, half the beef mixture, and half the Alfredo sauce. Sprinkle half the mozzarella and Parmesan cheese on top. Repeat the layers for maximum cheesy goodness.
Bake in a preheated oven at 375°F for 20 minutes, or until the cheese is bubbly and golden. Let it rest for a few minutes to allow the flavors to meld.
Top with fresh basil or a sprinkle of extra Parmesan for a professional touch. Serve warm for the ultimate comfort meal.