Preheat the oven at 400ºF
Cover a baking dish with aluminum foil. Coat it with olive oil.
Place the fillets in the baking dish and season with salt and pepper.
Spread 2 Tbsp of pesto over each fillet.
Bake them uncovered for 10-13 minutes or until it flakes easily and it is opaque.
Serve with white rice or a green salad.