Preheat the oven to 350 degrees F (175 degrees C).
In a bowl, combine the Italian sausage, mozzarella cheese, Parmesan cheese, bread crumbs, garlic, Italian seasoning, pepper, and salt. Mix until evenly combined.
Cut the banana peppers in half lengthwise and remove the seeds.
Fill each banana pepper half with the sausage mixture. Place the stuffed peppers on a baking sheet.
Drizzle the olive oil over the stuffed peppers.
Bake in the preheated oven for 25 minutes, or until the sausage is cooked through and the peppers are tender.
Interesting Facts
Banana peppers are part of the capsicum family, which includes jalapenos, bell peppers, and chili peppers.
Banana peppers are mild in flavor, with a sweet and tangy taste.
They are often pickled and used as a condiment.
Banana peppers are great sources of vitamins A and C.