Boil the spaghetti

• Boil the spaghetti in salted water according to package directions.
• Drain and set aside.

Cook the meat sauce

• Heat the olive oil in a large skillet over medium heat, add the chopped onion and cook until softened.
• Add the ground beef and season with salt, black pepper, garlic powder, onion powder, Italian seasoning, crushed red pepper flakes and dried parsley; cook until completely browned, then drain the excess grease.
• Add the minced garlic and cook for about 2 minutes, then pour in the marinara sauce, stir well and let simmer.

Make the Alfredo sauce

• Melt the butter in a saucepan over medium heat, add the minced garlic and cook for 1 to 2 minutes.
• Pour in the heavy cream and stir, then add the grated Parmesan and mix until smooth and creamy.
• Season with garlic powder, onion powder, black pepper and dried parsley to taste.

Assemble the dish

• Spread the Alfredo sauce over the bottom of a 9x13 baking dish.
• Add the drained spaghetti and mix until evenly coated.
• Spread the meat sauce over the top, then sprinkle with the grated mozzarella and dried parsley.

Bake

• Bake at 175 °C for 30 minutes, until the cheese is melted and bubbly.
• Top with parsley and serve with garlic bread and a side salad.