My dad showed me how to make these packet meals when money was tight. Just 4 ingredients for a perfectly tender individual feast

Cover the slow cooker with the lid and cook the hobo dinners on LOW for 6 to 7 hours, or on HIGH for 3 1/2 to 4 hours. They’re done when the potatoes and carrots are very tender and the beef patties are cooked through and no longer pink in the center.
Carefully lift the hot foil trays out of the slow cooker using tongs or a wide spatula, supporting the bottom so the rich brown juices don’t spill. Set each tray on a plate. Serve the hobo dinners right in their foil trays so everyone gets their own individual feast of beef, soft translucent potatoes, sweet carrots, and savory juices.
Let the trays cool for a minute or two before digging in, as the steam can be quite hot. Spoon some of the cooking juices over the top of the patties and vegetables just before serving for extra flavor.