Heat oven to 375 degrees F. Sprinkle both sides of fish fillets with Creole seasoning.
Heat oil in a large ovenproof skillet over high heat. Add fish fillets and sear first side, about 1 minute. Turn fillets with a spatula, add remaining ingredients (except Onion Crisps) and stir gently to combine; bring to a boil. Place skillet in oven and roast 25 minutes. Return skillet to burner, turn heat to high and cook 5 minutes longer.
To serve, place fish fillet in a shallow bowl and spoon some of the tomato/eggplant sauce over it. Top with a handful of Onion Crisps.
Yield: 4 servings