In a skillet, brown ground beef with garlic. Drain fat and stir in marinara.
In a bowl, combine ranch, Parmesan, and crumbled bacon.
Spread beef mixture into baking dish. Layer noodles, creamy bacon-Parmesan mix, mozzarella. Repeat layers.
Cover with foil and bake at 375°F (190°C) for 30 minutes. Remove foil and bake 10 more minutes.
Let rest 5 minutes before slicing and serving.
