Preheat oven to 375˚F. Line a baking sheet with foil and spray lightly with nonstock spray (optional).
Lay out the bottom layer of sliders on the baking sheet.
In a small bowl, stir together marinara, olive oil, oregano, red pepper flakes, and black pepper. Add one tablespoon of sauce to each slider. Top with cheese and 3-4 pepperoni per slider.
Bake the sliders for 5-6 minutes.
Meanwhile, make butter mixture by gently melting butter and stirring in spices and hot honey.
When sliders are baked, top them with top half of slider. Bake for another three minutes.
Brush the sliders with the honey butter mixture and return to oven for 2-3 minutes.