Pepperoni Pizza Poppers Buttermilk Biscuits, Pepperoni slices, Cheese (colby, mozarella, whatever you like), 1 beaten egg, Parmesan cheese, Italian seasoning, Garlic powder, Pizza sauce (inside poppers or for dipping) Cut the cheese. Flatten a biscuit out and stack filling. Fold edges up. Line up rolls in greased 9x13 in. pan. Brush with beaten egg. Sprinkle with parmesan, and Italian seasoning. Bake at 425°F for 16-18 minutes. Use pizza sauce for dipping or put a bit inside.