Shrimp Salad

1 lb. cooked shrimp, peeled and deveined
1/2 c. mayonnaise
1/3 c. chopped celery
1/4 c. finely diced onion
2 tsp. lemon juice
1/4 tsp. Worcestershire sauce
2 tsp. Old Bay Seasoning

Cut shrimp in half. Combine with remaining ingredients. Chill one hour. Serve on bed of lettuce or sandwich roll.