PREHEAT oven to 400° F.
DRIZZLE Catfish fillets with olive oil, and season with salt and pepper.
PLACE fillets on baking sheet. Bake uncovered in oven for 15 minutes.
While Catfish is cooking, PREPARE pasta per package directions, drain and cool. In a large pasta bowl, COMBINE dressing ingredients.
STIR in cooked pasta, corn, tomato and avocado, and toss to coat with dressing.
TOP with large chunks of baked Catfish, and sprinkle with 1 tablespoon of reserved cheese.