Preheat your oven to 375°F.
Arrange the chicken breasts in a single layer in a baking dish. Season with salt and pepper.
Spread 1-2 tablespoons of Caesar dressing over each chicken breast, creating a thick layer.
Place slices of provolone cheese over each chicken breast to cover completely.
Put the croutons in a zip-top bag and crush them into crumbs using a rolling pin. Mix the crumbs with the melted butter.
Sprinkle the buttered crouton crumbs evenly over the cheese layer.
Bake on the middle rack for 25-30 minutes, or until the chicken reaches an internal temperature of 165°F and the crumb topping is golden brown. If the topping starts to get too dark, loosely cover with foil for the remaining cook time.
Let rest for 5 minutes before serving.