Au Gratin Fish Supreme

1. 1

   In 10-inch nonstick skillet, heat margarine until bubbly and hot; add mushrooms and onion and saute until onion is translucent. Sprinkle vegetables with flour, salt and pepper and stir quickly to combine; cook, stirring constantly, for 1 minute.

2. 2

   Continuing to stir, gradually add milk and bring just to a boil.

3. 3

   Reduce heat and let simmer until mixture is smooth and thickened, stirring frequently.

4. 4

   Stir in green beans and fish and cook until fish is heated through.

5. 5

   Set each muffin half on a flameproof plate; top each half with half of fish mixture and 1 ounce cheese.

6. 6

   Broil until cheese is melted and lightly browned, about 1 minute.

* Per serving · 4 servings · Values may vary.

No additional tips available.