Bring water and seasoning bag to a boil in an 8-quart stock pot; cook 10 minutes. Add sausage; cook 5 minutes. Add corn; cook 5 minutes. Add shrimp; cook 3 minutes or until shrimp are done. Discard seasoning bag. Drain.
Note: Open seasoning bag to disperse spices into water, if desired. Spices will adhere to shrimp and corn and add more color to the dish.