Old Bay Shrimp Boil Packets

baby red potatoes (large ones cut in half, small ones can stay whole)

ears sweet corn (husks and silks removed)

smoked sausage (I used skinless (no casing))

medium raw shrimp (shells off, tails on if desired)

Old Bay Seasoning (divided)

Cajun seasoning (divided)

kosher salt (divided)

butter (divided)

olive oil (divided)

fresh parsley

lemon wedges