1 lb. sliced mushrooms
2 tbsp. butter
1 to 1 1/2 lb. cleaned and cooked shrimp, or use imitation crab as an economical substitute
1 1/2 c. cooked rice
1 1/2 c. grated cheddar
1/2 c. evaporated milk
3 tbsp. ketchup
1/2 tsp. Worcestershire sauce
1/4 tsp. salt
1/2 tsp. pepper

Saute mushrooms in butter while rice is cooking according to package directions. Mix all ingredients together and place in a large greased casserole. Bake at 350 degrees for 30 minutes or until bubbly and golden. 6-8 servings.