I don't remember where I got the recipe from exactly and there are a lot of variations online. But this one is yummy. You could prepare it in the am and stick it in your fridge until ready to cook too although I haven't tried that yet.
You take a good size sheet of foil (heavy duty is best), and put a good size hamburger patty on it. The first time I used those pre-made fresh patties but if you use good ground beef you can season it as you like better. I used Lipton onion soup mix (which I always recommend) and some season salt. They cut up an onion (rings are easist) and put those on top of the meat. Cut up some potatoes, use about 5-6 circles. Season those too. This last time I added some cut up garlic around the meat and baby carrots (5-6) or whatever will fit into your foil. (Eric and I thought it would be good with mushrooms too) Add a pat of butter on the top and pull the foil up to cinch it at the top. Heat it for about 1 hour at 350 degrees and there you go. Your own individual meal. I made the kid's a bit smaller and I make one or two with whatever veggies are left over. It is a perfect sized meal. Make sure the foil is completely closed, if not it will not cook as well.
If you try it let me know. Oh and added bonus, NO clean up!