Begin by preheating your oven to 400°F (200°C). Spread frozen chicken tenders on a baking sheet lined with parchment paper and cook according to package directions, about 20-25 minutes, until golden brown and crispy. Turn them halfway through for even cooking.

While the chicken is baking, carve mozzarella cheese slices into jagged teeth shapes to create a spooky effect.

Skewer two green olives onto toothpicks for each slider to serve as the quirky 'eyes'.

In a medium saucepan, heat the marinara sauce over medium heat, stirring occasionally until it begins to simmer, about 5 minutes.

Spread approximately 1 tablespoon of warm marinara sauce on the bottom half of each slider bun. Place a crispy chicken tender on top, add more marinara if desired, then layer on your mozzarella teeth.

Place the top bun gently over the cheese, securing the skewer with olives on top, creating your monstrous presentation.

Serve immediately on a festive platter, optionally including dipping sauces such as extra marinara or ranch.