Preheat your oven to 375°F (190°C).

In a large skillet, cook the ground beef over medium heat until browned. Add the diced onion and garlic, and cook until the onion is translucent.

Stir in the pasta sauce, crushed tomatoes, oregano, basil, salt, and pepper. Simmer for about 10 minutes.

In a small bowl, mix the ricotta cheese with the egg until well combined.

In a 9x13-inch baking dish, spread a thin layer of the meat sauce on the bottom. Place 3 lasagna noodles on top.

Spread half of the ricotta mixture over the noodles, then sprinkle with a third of the mozzarella cheese and Parmesan cheese. Repeat the layers - meat sauce, noodles, ricotta mixture, cheeses.

Finish with a final layer of noodles, meat sauce, and the remaining mozzarella and Parmesan cheeses.

Cover the dish with foil and bake for 25 minutes. Remove the foil and bake for an additional 25 minutes until bubbly and golden brown.

Let the lasagna rest for about 10 minutes before slicing. Garnish with fresh basil or parsley before serving.

Enjoy!