Bring a large pot of salted water to a boil. Add lasagna noodles and cook according to package instructions. Drain the noodles and lay them flat on a clean surface.

Heat olive oil in a large skillet over medium heat. Add ground beef and cook until browned. Stir often and break the meat into small pieces.

Pour marinara sauce into the cooked beef. Add garlic powder, Italian seasoning, salt, and pepper. Stir well and simmer for about five minutes.

In a mixing bowl, combine ricotta cheese, egg and half of the Parmesan cheese. Mix well until smooth and creamy.

Preheat the oven to 375°F (190°C). Lightly grease a baking dish with a little olive oil or cooking spray.

Spread a thin layer of meat sauce on the bottom of the baking dish. Place three lasagna noodles over the sauce.

Spread a layer of the ricotta mixture over the noodles. Add some mozzarella cheese and a spoonful of meat sauce.

Add another layer of noodles, ricotta mixture, meat sauce and mozzarella cheese. Repeat until all ingredients are used.

Sprinkle the remaining mozzarella and Parmesan cheese on top. This creates a golden and bubbly crust when baked.

Place the dish in the oven and bake for 40–45 minutes. The cheese should melt and turn slightly golden.

Remove the lasagna from the oven and let it rest for ten minutes. This helps the layers hold together when slicing.

Slice the lasagna into squares. Garnish with chopped parsley if desired. Serve warm and enjoy your homemade meal.