You can also bake this in the regular baking pan just by spreading the mixture evenly, bake it and then tossing the cheese on top. Same taste...made it for my family and everybody loved it! You can use powdered Onion and Garlic if you wish not to use the real thing. I changed that part from the original recipe, I actually really liked putting real onion and garlic as well as everything else as fresh as possible because it does add so much flavor. For the lighter version, I am suggesting ground chicken or turkey, and plain Greek yogurt instead of the sour cream.