
Heat the oven to 425°F. Toss the corn and sliced peppers with 1 tbsp oil and salt on a sheet pan and roast 5 minutes.
Pat the tilapia dry. Mix chili powder, garlic powder, salt, the remaining oil and zest of 1 lime, and rub over the fish.
Lay the fish on the pan with the vegetables and roast 8-10 minutes, until it flakes easily.
Squeeze lime juice over everything. Warm the tortillas in the oven for the last 2 minutes, wrapped in foil.
Flake the fish into tortillas with the corn and peppers and top with sliced avocado.
Photo: DinnerDrop