Shrimp Au Gratin - cooking recipe

Ingredients

4 Tbsp. butter or margarine
3 Tbsp. chopped onion
1/4 c. flour
1/2 tsp. salt
1/4 tsp. dry mustard
pinch of pepper
1 1/2 c. milk
1 c. shredded Swiss cheese
1 lb. cooked shrimp, peeled
1 (4 oz.) can mushrooms, drained
1/4 c. bread crumbs

Preparation

Melt 3 tablespoons butter in saucepan.
Saute onion.
Stir in flour, salt, mustard and pepper.
Cook, stirring constantly until mixture is bubbly.
Add milk; cook over medium heat, stirring constantly until sauce thickens and bubbles.
Add 3/4 cup cheese; stir until melted.
Add shrimp and mushrooms to sauce.
Turn into a buttered 6-cup shallow baking dish.
Combine crumbs and remaining cheese.
Sprinkle over top of dish.
Dot with remaining 1 tablespoon butter.
Bake in hot oven, 400\u00b0, for 10 minutes or until sauce is bubbly and top is lightly browned.
Makes 4 servings.
May also be baked in individual ramekins.