1. Preheat your oven to 375°F (190°C). Grease a 9×13-inch baking dish lightly with oil.
2. In a large skillet over medium heat, cook the ground beef until browned. Drain excess fat.
3. Add the onion and garlic to the beef, sautéing until the onion is translucent and fragrant.
4. Stir in the marinara sauce, Worcestershire sauce, salt, and pepper. Let it simmer for 10 minutes to meld the flavors.
5. While the sauce simmers, boil the lasagna noodles according to package instructions. Drain and set aside.
6. In a mixing bowl, combine ricotta cheese, egg, and Parmesan cheese. This mixture adds a creamy layer that’s irresistibly good!
7. Begin assembling the lasagna. Start with a layer of meat sauce in the bottom of the dish, followed by noodles, and then the ricotta mixture. Repeat layers, ending with the meat sauce on top.
8. Sprinkle mozzarella and cheddar cheeses generously over the top layer.
9. Cover with foil and bake for 25 minutes. Then, remove the foil and bake for an additional 10 minutes or until the cheese is bubbly and golden brown.
10. Let the lasagna cool for a few minutes before sprinkling fresh parsley on top. Serve and enjoy!

A tip from my kitchen to yours: let the lasagna sit for about 10 minutes after baking. This helps the layers set beautifully and makes serving a breeze.