A quick, easy and delicious way to have pizza during the days of unleavened bread.
Lightly grease and dust a 10 x 15 inch cookie sheet with cornmeal or flour. Prepare batter and pour into pan, tilting pan so batter covers bottom. Bake on lowest rack in 425 degree oven for 25-30 minutes.
Brown ground beef, seasoning to taste. Drain well. Arrange topping of meat, onion and well drained mushrooms over crust. Drizzle with pizza sauce. Sprinkle with cheese. Return to oven for 10-15 minutes.