Grilled New England Seafood Foil Packets

Ingredients (9)

• 2 tablespoons butter,
• 2 tablespoons finely chopped fresh dill
• 1 small garlic clove,
• kosher salt and freshly ground black pepper
• 8 ounces red potatoes,
• 16 ounces skinless cod fillet,
• 16 large shrimp,
• 2 ears corn on the cob,
• 1 medium lemon,