Slice the Onions and the Potatoes in to big chunks and leave to one side. Then Grill the sausage until cooked. In a big ass pot, put in a stock with OLD BAY seasoning or cajun spices and herbs ect. Then Chuck in the Potatoes first until cooked, then add the onions/garlic for 5 mins then the sausage to reheat. Then finally add the shrimp until JUST cooked. Serve on a plate all rustic style, add OLD BAY seasoning and TABASCO!!! (Both Crucial) Enjoy with corn bread!!!