Preheat grill or oven to 400°F.
Lay out foil sheets and divide ingredients evenly among them.
Start with sausage slices, followed by veggies and shrimp on top.
Drizzle melted butter and sprinkle with seasoning.
Fold foil into tightly sealed packets.
Grill or bake for 18–20 minutes, flipping once if grilling.
Open carefully and serve hot, optionally garnish with parsley or lemon.
