Assuming you are using a 9x13 pan (or something close), I use a lot more cheese than most recipes call for. The same for meat.

I'll usually use a large container of ricotta (2 pounds, I think), 1½ pounds mozzarella, about two pounds of browned chopped meat or sausage, about a quart of sauce and grated parmesan. That'll cover the height of the pan when using pre-cooked noodles.