Spray baking dish with cooking spray. Place chicken in the bottom in a single layer and sprinkle with the salt and pepper. Spread the pesto on the chicken. Put the mozzarella on top.
Bake for 35-45 minutes until the chicken is 160 degrees and the cheese is golden and bubbly. You can broil it for a few minutes at the end to brown the cheese if you want.
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Notes
Substitutions: Pesto - Feel free to sub in any flavor pesto for the basil pesto in this recipe.Cheese - You can also use any type of cheese. Using a milder flavored cheese helps the flavor of the pesto to star in this dish.Prep: Chicken tenderloins save the step of cutting the chicken in half. Using store bought pesto can also save time if you don't have homemade on hand.