Shrimp and Crab Casserole

1½ lb shrimp (cut up into bite- sized pieces)1 lb backfin crabmeat (use jumbo lump crabmeat if you can find) 1 cup rice (cooked) 1 cup mayonnaise 3/4 cup light cream or Half & Half 2 1/2 tsp worchestershire sauce 1 cup celery (chopped fine) 1/2 cup green pepper (chopped fine) 1/2 cup onion (chopped fine) 8 oz sliced mushrooms (sautéed) 1 tsp salt 1/2 tsp pepper

Mix together all the ingredients except the crabmeat - fold the crabmeat in last. Top lightly with bread crumbs. Bake in a 9x13 pan at 350 for 35 mins