In a large skillet over medium heat, cook the bacon until crispy. Once done, remove from the skillet and let it rest on paper towels.

In the same skillet, add the lean ground beef and cook until browned and fully cooked through, about 6-8 minutes.

Stir in the minced garlic with the beef; sauté for about 1-2 minutes until fragrant. Mix in the marinara sauce until combined.

In a separate bowl, combine the ricotta cheese with half of the Parmesan cheese. Season with salt and pepper.

In a baking dish, layer ingredients starting with meat sauce, followed by noodles, half of cheese mixture, some beef mixture, and mozzarella. Repeat layers, ending with noodles and sauce on top.

Preheat your oven to 375°F (190°C). Cover with foil and bake for 25 minutes. Remove foil, sprinkle remaining mozzarella, and bake for an additional 15-20 minutes until bubbly and golden.