Low Carb Quiche

4 eggs
2 cups milk
1 cup Bisquick

Optional ingredients:
1 cup cooked meat (bacon, ham or leftovers of any kind)
1 to 2 cups shredded cheese
1 small onion
1 green bell pepper, chopped fine
1 small can mushrooms, drained well
Salt and pepper to taste

Beat together eggs, milk and Bisquick. Grease bottom of 9-inch quiche dish or pie pan. In bottom of pie plate, put in any or all of the optional ingredients. Pour egg mixture over this. Bake at 350 degrees F for 45 to 50 minutes or until knife comes out clean.