Preheat the oven to 400 degrees. Lightly pound the chicken breast cutlets to a uniform thickness, about 1/4 -1/2 inch thick. I like mine on the thin side, but any thickness will work as long as they are similar so they cook evenly. For larger breasts, you will need to slice them horizontally before pounding out.
Bake for 15-20 minutes (depending on thickness) minutes, flipping halfway through until chicken is golden brown and cooked through. For nicely browned chicken cutlets, spray them with cooking spray or olive oil spray.