Brown the beef with vegetables

• Brown the ground beef in a frying pan.
• Add the diced onion and bell pepper and season to taste.
• Pour in the spaghetti sauce and let it simmer.

Cook the spaghetti

• Cook the spaghetti in salted boiling water until al dente.
• Drain the pasta.

Make the Alfredo sauce

• Melt the butter in a saucepan and add the minced garlic.
• Stir in the heavy whipping cream and Parmesan cheese.
• Season with salt and pepper and let it thicken.

Assemble the casserole

• Place the cooked spaghetti in the casserole dish.
• Pour over the Alfredo sauce and mix.
• Top with the meat mixture, then scatter over the mozzarella and parsley.

Bake

• Bake at 190 °C for 15 minutes.
• Top with more Parmesan cheese before serving.