Classic Beef Lasagna

Steps

1. 1
   Preheat oven to 190°C (375°F).
2. 2
   Heat olive oil in a large pan. Cook onion and garlic until softened (3 min).
3. 3
   Add ground beef and brown, breaking it up (5-7 min). Drain excess fat.
4. 4
   Stir in crushed tomatoes, tomato paste, oregano, basil, salt, and pepper. Simmer 20 min.
5. 5
   Mix ricotta, egg, and half the parmesan in a bowl.
6. 6
   Spread a thin layer of meat sauce in a 9x13-inch baking dish.
7. 7
   Layer: lasagna sheets → ricotta mixture → meat sauce → mozzarella. Repeat 3 times.
8. 8
   Top with remaining mozzarella and parmesan.
9. 9
   Cover with foil and bake 25 min. Remove foil and bake 15 min more until golden.
10. 10
    Rest 10 minutes before slicing.