Sea bass, maki-maki, red snapper, halibut or salmon (steaks okay).
Mince garlic. Add vinegar. Cut fish into serving portions and season with garlic-vinegar and salt and pepper. Place fish in microwave dish and sprinkle with onion soup. Cover with wax paper and microwave on high 3-4 minutes. Let sit for 2 minutes and check for doneness.
Chop tomato coarsely. Chop 1/4 cup cilantro leaves. Combine and season with salt and pepper and lemon juice. Put fish fillets on plates and surround with cilantro-tomato salsa. Sprinkle with lemon juice. Serve.