Step 1

Preheat the oven to 350F. Dip the chicken in the egg to coat completely. Let the egg drip off the chicken for a few seconds, then dredge to coat in the breadcrumbs.

Step 2

Heat the olive oil in a large skillet over medium-high heat. Add the breaded chicken, working in batches if needed. Cook for 2-3 minutes per side, or until golden brown. Transfer to a paper towel-lined plate.

Step 3

Use a bread knife to cut the slider buns in half. Place the bottom half of the buns into a 9x13' baking dish, lightly greased with cooking spray. Arrange the chicken over the buns.

Step 4

Spread the marinara sauce evenly over the chicken, then top with the slices of mozzarella cheese. Place the top of the slider buns over the cheese.

Step 5

Mix the melted butter, parmesan, Italian seasoning, garlic powder, and onion powder together. Generously spoon the mixture over the top of the buns to coat.

Step 6

Transfer the dish to the oven and bake for 15-20 minutes, or until the tops of the buns are browned to your liking. Slice between each slider bun and serve.