I have made the cheeseburger pie several times. I use very lean ground beef (90% lean), cook it with spices and onions, add a tomato sauce layer(like tomato-basil sauce). I add a vegetable layer, like chopped spinach, a quiche layer (eggs, cream, cream cheese mixed together) and cheese on top. I bake it for around 45 min-60 min depending on how hot my oven is. It is very tasty and not greasy.