
The sausage and its drippings really adds a nice flavor to the shrimp which can be bland if not fried or cooked with Old Bay Seasoning.
Add a tossed salad or green beans and you're done. Baked beans would go well with this dish too.
If there is no time to shell the shrimp yourself or you're not so inclined, then purchase the frozen bags of shelled shrimp or buy it at the seafood counter. They usually put out fresh and frozen types and it frequently goes on sale.
If it's already cooked, just add it to the sausage to heat through.