A couple things I did different from the recipe: I mixed the ricotta with the egg and sauce then mixed in with the noodles and then layered slices of fresh mozzarella in the middle and on top. I omitted Parmesan in the cooking process since we just sprinkle more on after serving. I broiled for ten minutes after baking at 400 and almost but not quite burned the mozzarella! Also I used penne because my store didn’t have ziti. I also poured leftover sauce over the top after serving after the photo. Great and super easy recipe I’ll make again.