Shrimp Boil Foil Packs

shrimp, peeled and de-veined

ears of corn on the cob, husked

andouille sausage

baby red potatoes OR baby yellow potatoes

old bay seasoning OR homemade seasoning (see note)

salt and pepper,

minced garlic

juice of ½ lemon, plus lemon wedges for serving

butter melted + ½ cup, divided

chopped fresh parsley, for topping