My very picky child raved about how good these were, so I thought it worth posting. You can find the original recipe here.
I will add a picture the next time I make it again.
You will need a square casserole dish to cook this in.
Ground Beef (amount depends on how big you want the patties to be and how many people you are cooking for)
Potatoes – one per person if small, ½ per person if big
Onion Slices – 1-2 slices per person/packet
Any other veggies you want (we used diced green peppers)
Seasoning – whatever you think would be good (most of us used Worcestershire sauce, but for the kids, just salt & pepper)
Pat of Butter
* We let each person pick what they want in their packet.
Preheat oven to 375 degrees F (190 degrees C). Make hamburger patties in whatever size you choose. Season the patty generously. Place each patty in the center of it’s own piece of foil (approx. 16in or so). Add veggies to the packet. Feel free to add a bit more seasoning if you want. Place the pat of butter on top of the final concoction. Finally, bring the foil together over the top of it all and seal tight. The final result should look like a hobo bag. Place the foil packets directly on the wire racks in your oven and cook for 1 hour.
Important: The foil packets need to be sealed tight. This will help everything cook properly. Otherwise, you will have dry meat and raw potatoes.
Some people like to add a bit of soup to the packet to make a gravy and add a bit of flavor. Play around with it until you find what you like.