Couple simple meals on the fire I've done in the past with the Scouts.
You need 2 things. A Good Wooden Axe Handle and a 1 Gallon Plastic Ziplock Bag.
Mix Bisquick Mix and Water in Plastic bad to make a heavy dough. Wrap Dough around butt of Axe Handle, Slowly cook Dough over fire/coals, turning frequently and not catching the axe on fire. (preferable to keep sheath on axe head to prevent injury)
Toast to light to medium golden brown and peel off handle.
Second is take 2 large pieces of Aluminum foil, toss in a slice of Raw onion about 1/4" thick, then toss a 1/4 lb hamburger patty on top of that, salt and pepper the hamburger to taste, then add one more slice of onion 1/4" thick, some potatoes sliced 1/4" thick, some baby carrots, some corn, add a little water (about 1/4 cup) seal the whole thing in the aluminum foil, bury in hot coals for about 30-40 minutes, let cool off, and enjoy.