We do something very similar when we camp... we call it campfire veggies.
We use 2 Zucchini, 2 Yellow Squash, 1 purple onion, and 4 potatoes.
We peel the potatoes and cube, slice the two kinds of squash into coins, and dice the onion. We make a large pouch out of aluminum foil that has been doubled. Into the pouch goes all the veggies, some Seasoned Sale, (or whatever I have put on the meat), and a half stick of butter.
We place on the grill for 45 minutes and then serve from a bowl. It is awesome!
Nights camped in 2010 = 21 nights
2008 Chevy CCab 5.3L 4WD Z71
2008 FR Surveyor 291
Slpybear, Mrs Slpybear, Three Cubs