Preheat a grill to medium-high heat or prepare a campfire with hot coals.

In a large bowl, toss the potatoes with olive oil, ranch seasoning, and black pepper.

Divide the potatoes evenly among six sheets of heavy-duty aluminum foil.

Seal each packet tightly.

Place the packets on the grill or over indirect campfire heat.

Cook for 25–30 minutes, turning occasionally, until the potatoes are tender.

In a large bowl, combine the ground beef, Worcestershire sauce, garlic powder, onion powder, pepper, and salt.

Form into six equal patties.

Grill the burgers for 4–5 minutes per side, or until they reach your desired level of doneness.

During the last minute of cooking, add cheese slices if desired.

Lightly toast the hamburger buns on the grill.

Place each burger on a bun.

Add lettuce, tomato, onion, pickles, and desired condiments.

Carefully open the potato packets and sprinkle with fresh parsley.

Serve burgers alongside the ranch potatoes.