Place the fillets in a microwave-safe dish; sprinkle with bouillon. In a bowl, combine the next seven ingredients. Pour over fish. Place lemon over fillets. Cover and microwave on high for 3-4 minutes or until fish flakes easily with a fork. Remove fish and keep warm. Strain cooking liquid; reserve 2 tablespoons.
For sauce, place butter and garlic in a microwave-safe dish. Microwave, uncovered, on high for 45 seconds. Add the remaining ingredients and reserved cooking liquid. Cook 30 seconds longer or until bubbly. Serve over fish.