Preheat oven: Preheat oven to 375°F.
Prep muffin tin: Grease a mini 24-count or regular 12-count muffin tin with non-stick spray or oil.
Add first cheese layer: Add a tablespoon of 1 bag shredded mozzarella or Parmesan cheese (12 oz) to each cup, spreading evenly to cover the bottom.
Add peppers and seasoning: Top with chopped 1 jar banana peppers (16 oz), drained and chopped, then sprinkle with 1 teaspoons Italian seasoning.
Add second cheese layer: Add another tablespoon of 1 bag shredded mozzarella or Parmesan cheese (12 oz) on top of the peppers.
Bake: Bake for 17m 30s
, or until cheese is melted and golden brown around the edges.
Cool and remove: Let cool in the tin for a few minutes to firm up, then remove with a butter knife or small spatula.
Serve: Serve warm with marinara sauce.