In A Dutch Oven, Cook The Beef, Sausage And Onion Over Medium Heat Until Meat Is No Longer Pink; Drain. Stir In The Tomato Paste, Garlic Salt, Oregano And Cayenne. Spread Over The Cut Side Of Each English Muffin. Place On Baking Sheets. Combine The Cheeses; Sprinkle Over Meat Mixture. Freeze For Up To 3 Months Or Bake At 350