DIP fish in mayo, then in crumbs, turning to evenly coat both sides. Heat 1 Tbsp. oil in large skillet; cook fish, in 2 batches, 3 to 5 min. on each side or until fish is golden brown on both sides and flakes easily with fork. Remove from skillet; cover to keep warm. Repeat with remaining oil and fish.
BLEND dressing, 1/4 cup cilantro and half the peppers in blender until smooth.
CHOP remaining cilantro; place in medium bowl. Add fruit, onions, remaining peppers and dressing mixture; mix lightly. Serve with fish.