sautéed Green peppers, sautéed onions, button mushrooms, and pepperoncini peppers..
See those other items from Blue Collar Style Signature Pies.
Sauerkraut (really?), turkey-Canadian bacon.
Pepperoni, meat balls, turkey-Canadian bacon, bacon, sausage, and chicken.
Lightly mixed with mozzarella, provolone, cheddar.