You will want to use a deep 9x13 baking pan. If you love lasagna, a great investment is a lasagna pan. Lasagna pans are typically deeper to allow for the layers in the dish. A traditional lasagna will have four layers of noodles, and most baking dishes are not deep enough for this quantity. However, if you do not have a lasagna pan then you will want to use the deepest baking dish you have.