Spread 1 tablespoon marinara sauce over panini bread.
Top with 2 slices of cheese and 4 to 5 slices of pepperoni.
Sprinkle with Italian seasoning, if desired.
Bake at 400°F until cheese is melted, 5 to 7 minutes.
Hold warm until ready to serve.
CCP: Maintain hot food at 135°F or above