Tasty Baked Fish
["2 Tbsp. minced onion", "1/2 tsp. powdered mustard", "1 1/2 tsp. water", "1 1/2 lb. fish fillet", "3/4 tsp. salt", "1/2 c. mayonnaise", "1 tsp. lemon juice", "pinch of black pepper", "paprika (to garnish)"]
["Combine onion, mustard and water.", "Let stand 10 minutes.", "Wipe fish with damp cloth and arrange in baking dish.", "Sprinkle with salt.", "Combine mayonnaise, lemon juice, onion and mustard mixture and black pepper.", "Pour mixture over fish.", "Bake in preheated oven at 500\u00b0 for 12 to 17 minutes or until done and lightly brown. Garnish with paprika.", "Serves 6."]
["onion", "powdered mustard", "water", "fish fillet", "salt", "mayonnaise", "lemon juice", "black pepper", "paprika"]