Surf 'n Turf Foil Packs

Preheat grill over high heat. Cut 4 sheets of foil about 12 inches long.  Divide steak, shrimp, corn, tomatoes, red onion, lime wedges, and garlic between each foil pack. Drizzle with olive oil and sprinkle with Old Bay, fresh thyme, cumin, and black pepper.  Fold the foil packets crosswise over the mixture to completely cover the food. Roll the top and bottom edges to seal them closed.  Place foil packets on the grill and cook until just cooked through, about 6 to 8 minutes per side. Garnish with parsley and serve with lime wedges.