This is our favorite. If you have a 12 inch DO, line with foil in two directions with plenty of length to seal on top. Cover the bottom of the DO with sliced onions, put two small Cornish hens (baste them with butter first and make sure they are completely thawed) in the middle. Around the sides, add small red potatoes, 4 half ears of corn on the cob and carrots. Season with lots of Rosemary, season salt and black pepper. Pour in one can of tomatoes and one can of beer. Fold the foil over and seal the top. Put the lid on (you may have to mash it down) and cook with 10 charcoals on the bottom and 20 on the top for about an hour and a half. Then put the same amount of fresh charcoal and cook for another hour or so. It is great.