Preheat oven to 350º. Prepare two pieces of foil, one for each filet, with non-stick cooking spray and place on a baking sheet.
Place filets on each piece of foil. Season with salt, pepper, and garlic powder. Drizzle lime juice over fish.
Bake for 10-12 minutes or until completely cooked through.
While fish is cooking, prepare the salsa.
Mix grape tomatoes, avocado, onion, and mango together in a small bowl.
Drizzle lime juice over salsa. Stir to combine.
Season with salt and pepper, then serve over fish.
Top with pineapple sage and enjoy!