1. Warm the oven to a toasty 375F (190C), preparing for a delectable Italian feast.
2. Boil lasagna noodles until perfectly tender, then carefully drain and set aside to cool.
3. In a sizzling skillet, transform ground beef into a rich, golden brown mixture with aromatic onions and garlic, cooking over medium heat. Eliminate excess grease thoroughly.
4. Infuse the meat with robust marinara sauce, enhancing with delicate salt and pepper. Allow the sauce to gently simmer for approximately 5 minutes, developing deep flavors.
5. Create a creamy cheese blend by mixing ricotta, mozzarella, and Parmesan in a spacious mixing bowl until uniformly combined.
6. Craft the lasagna layers with precision:

Coat the 9×13-inch baking dish with a whisper-thin marinara base.

Arrange the first layer of noodles, creating a sturdy foundation.

Generously spread half the cheese mixture across the noodles.

Cascade half the remaining marinara sauce over the cheese.

Repeat the layering process with remaining noodles, cheese, and sauce.

Crown the masterpiece with a blanket of shredded mozzarella.

1. Shield the dish with aluminum foil, then bake for 30 minutes, allowing flavors to meld.
2. Unveil the lasagna, removing the foil, and return to the oven for an additional 10-15 minutes until the cheese transforms into a golden, bubbling landscape.
3. Exercise patience by letting the lasagna rest for 10 minutes, allowing the layers to settle and intensify in flavor before serving.