Easy cheesy five ingredient hot and melty pesto mozzarella chicken sliders make the ultimate appetizer for parties and holidays. Not a single one will be leftover!
Preheat oven to 400 degrees and lightly grease a 9x13 inch baking pan. Arrange the bottom halves of the slider buns side by side in the pan. In a small bowl stir together melted butter and 2 tablespoons of the pesto and set aside.
Spread mayo on the bottom sliders buns (optional) then layer evenly with shredded chicken, pesto, mozzarella slices, and finish with top halves of the buns. Brush pesto-butter mixture over the tops of the sliders.
Bake for 10 minutes uncovered, then cover with foil and continue to bake 10-15 more minutes until cheesy is melted. Serve warm.