Preheat your oven to 350°F (175°C).

In a skillet over medium heat, cook the Italian sausage until browned and fully cooked, breaking it apart with a spatula. Drain excess fat.

Slice the slider rolls in half and place the bottom halves in a greased baking dish.

Layer the cooked sausage evenly over the bottom halves of the rolls.

Add a layer of sliced pepperoni and salami on top of the sausage.

Sprinkle the banana peppers evenly over the meats.

Top with shredded mozzarella and provolone cheese, followed by grated Parmesan cheese.

Drizzle olive oil over the top of the sliders and sprinkle with garlic powder, Italian seasoning, crushed red pepper flakes, salt, and pepper.

Place the top halves of the rolls on the sliders and cover with aluminum foil.

Bake in the preheated oven for 15 minutes. Remove the foil and bake for an additional 5-10 minutes, or until the cheese is bubbly and the tops are golden.

Remove from the oven, let cool for a few minutes, slice, and serve warm.