01 -
Preheat oven to 200°C. Lightly grease a large baking sheet with oil or nonstick spray.
02 -
In a large pot of boiling salted water, cook potatoes until just tender, about 10–13 minutes. Add corn during the final 5 minutes of cooking, then drain thoroughly.
03 -
In a small bowl, combine melted butter, minced garlic, and Old Bay seasoning.
04 -
Arrange parboiled potatoes, corn, shrimp, and sliced sausage in a single layer on the prepared baking sheet. Pour the butter mixture over the ingredients and gently toss to combine.
05 -
Transfer baking sheet to the oven and bake for 12–15 minutes, or until shrimp are opaque and the corn is tender.
06 -
Serve immediately, garnished with fresh parsley and lemon wedges.