Look for precooked oven-ready lasagna noodles near the dry pasta in the grocery store or in the frozen pasta section. Trim the precooked lasagna noodles to fit, if necessary.
This recipe may be baked immediately after assembly. Cover the dish with foil and bake at 400°F for 30 minutes. Uncover the dish and continue baking for about 10 minutes, or until it is bubbly around the edges.