Line sheet pan with aluminum foil or parchment paper.
Place potatoes on sheet pan and brush with melted butter and ½ teaspoon Old Bay. Roll around on pan to coat with butter and seasoning.
Cook at 400 degrees for 15 minutes (longer if potatoes are larger than petite/new size)
Add corn, brush with butter and sprinkle with ½ teaspoon of Old Bay, coating all sides.
Return pan to oven for 7-8 minutes.
Add shrimp, sausage and half lemon wedges, squeezing the lemon wedges over all. Brush shrimp with melted butter and sprinkle another ½-1 teaspoon of Old Bay. Toss all to blend, keeping a single layer on pan.
Cook additional 8-12 minutes, or just until shrimp are pink and cooked through. Check potatoes for doneness.
Remove from oven and sprinkle entire pan with hot sauce, tossing to coat.
Notes
Adjust the hot sauce and Old Bay seasoning amounts to suit your tastes.