1 1/2 lb. cooked shrimp
6 to 8 frozen cooked crab legs
1 lb. fresh mushrooms, sliced
1 1/2 sticks butter
2/3 c. flour
1 tsp. salt
1/8 tsp. pepper
5 c. Half & Half
5 oz. frozen peas, uncooked
1/4 c. sherry
1 c. Velveeta cheese