Preheat to 400. Cook meat and 1/2 cup of the onion, drain. Stir in bbq sauce. Spoon into a 13x9 baking dish. Sprinkle with cheese. Blend bisquick , milk, and eggs til well blended, , pour over meat. Sprinkle with rest of the onion. Bake for 25-27 minutes. Til crust is light golden brown.

Try add some chopped green peppers, and chopped tomatoes.