01 -
In a large bowl, combine ground beef, ketchup, Worcestershire sauce, onion powder, garlic powder, kosher salt, smoked paprika, black pepper, and water. Mix thoroughly and set aside.
02 -
In another bowl, mix diced Yukon Gold potatoes, frozen sliced carrots, olive oil, garlic powder, kosher salt, and black pepper until evenly coated.
03 -
Lay out six 18x12 inch sheets of heavy-duty aluminum foil. Lightly spray each sheet with nonstick cooking spray. Divide vegetable mixture evenly among foil sheets, placing it in the center of each.
04 -
Divide beef mixture into six equal patties. Place one patty atop the vegetables on each foil sheet. Distribute sliced onions evenly over the patties. Top each with one tablespoon of butter.
05 -
Fold and crimp foil edges securely to seal each packet tightly, ensuring no air escapes.
06 -
Preheat grill to 400°F over medium-low to low heat. Place foil packets on the grill and close lid. Cook for 30 to 40 minutes or until the internal temperature of patties reaches 160°F and vegetables are tender.
07 -
Carefully remove packets from grill, open cautiously to avoid steam, and serve immediately.