Cook the spaghetti

• Bring the water to a boil in a stockpot and season with salt.
• Add the spaghetti and cook until al dente, stirring in the flour to help thicken the cooking water.
• Drain the pasta in a colander.

Make the meat sauce

• Heat the olive oil in a frying pan and brown the ground beef.
• Pour in the tomato sauce and simmer until slightly thickened.

Assemble the dish

• Toss the drained spaghetti with the meat sauce.
• Transfer to a baking dish and top with the mozzarella and parmesan.

Bake

• Bake at 180 °C until the cheese is melted and golden.