Heat oven to 400 degrees
To a steam pot, add corn and potatoes and steam for 5 minutes until partially cooked
To a sheet pan or oven safe bake dish, add partially cooked corn, potatoes, sausage, onion, garlic, butter seasoning blend, reserve 1 tbsp of seasoning for shrimp
Bake those ingredients together for 10-12 minutes or until fragrant and partially cooked
While that cooks, season shrimp with remainder of garlic butter seasoning
Remove pan from oven and add shrimp
Add more melted butter to the corn and potatoes with a squeeze of fresh lemon juice
Bake for an additional 5-7 minutes or until shrimp is cooked through and tender
Remove from the oven and serve with fresh parsley along side more melted butter for dipping if desired