Preheat the oven to 400°F (200°C) and bake the frozen chicken tenders on a parchment-lined baking sheet for 15-20 minutes until golden brown and reaches an internal temperature of 165°F (74°C).

Slice the mozzarella cheese into thin pieces and cut them into jagged shapes resembling sharp teeth for a fun Halloween effect.

Skewer two green olives onto a toothpick for each slider to create spooky monster eyes.

Heat the marinara sauce in a small saucepan over medium heat for 5-7 minutes until it simmers.

Assemble the sliders by spreading warm marinara on the bottom bun, adding a chicken tender, another drizzle of marinara, and the spooky mozzarella cheese, then top with the slider bun.

Serve the sliders immediately with the olive eyes on toothpicks for decoration.