In a mixing bowl, combine flour, cornstarch, salt, black pepper, and cayenne pepper. In another bowl, beat the egg. Dip each fish fillet into the egg, then coat in the flour mixture.

Fry the Fish

Heat the oil in a deep skillet over medium-high heat. Once the oil is hot, carefully add the coated fish fillets and fry for about 4-5 minutes per side, or until golden brown and cooked through. Remove and drain on paper towels.

Fruit Salsa

Make the Fruit Salsa

In a bowl, combine diced pineapple, diced mango, chopped red onion, chopped cilantro, lime juice, and salt. Mix well and set aside to let the flavors meld.

Spicy Mango Sauce

Prepare the Sauce

In a small bowl, mix together the mango puree, Sriracha sauce, lime juice, and honey until well combined. Adjust the spice level by adding more Sriracha if desired.

Taco Assembly

Assemble the Tacos

Warm the corn tortillas in a skillet or microwave. Place a few leaves of Bibb lettuce on each tortilla, followed by a few pieces of fried fish. Top with fruit salsa and drizzle with spicy mango sauce. Serve immediately.