- 1/2 cup softened butter, plus more for baking dish
- 4 (8 ounce) fillets grouper
- 1 teaspoon salt
- 1 tablespoon lemon pepper, or to taste
- 2 teaspoons garlic powder
- 2 teaspoons onion powder
- 1/4 cup key lime juice
- 1/4 cup fresh orange juice
- 12 slices lime
- 8 oranges
- Preheat oven to 325 degrees F (165 degrees C). Lightly butter a 9×13-inch glass baking dish and set aside.
- Season the grouper fillets with salt, lemon pepper, garlic powder, and onion powder; place into prepared baking dish. Spread about 2 tablespoons of softened butter over the top of each fillet. Pour in the lime and orange juices, then cover each fillet with 3 slices of lime and 2 slices of orange.
- Bake in preheated oven until fish is opaque and flakes easily with a fork, about 15 minutes.