Instructions

  1. Thaw fish, if frozen.
  2. Turn under any thin edges of fish.
  3. In a 12 x 7½ x 2-inch baking dish (use an 8x8x2-inch baking dish for low-wattage ovens) arrange fish fillets with thicker portions toward outer edges of the dish.
  4. Cover dish with vented clear plastic wrap.
  5. Cook on 100% power (high) for 4 to 7 minutes or till fish flakes easily when tested with a fork, giving dish a half-turn after 3 minutes.
  6. Meanwhile, for sauce, in a small bowl stir together cucumber, mayonnaise, yogurt, and mustard.
  7. Serve with fish.