The best campfire meal I've ever made has got to be foil wrapped kalbasa, potatoes, and green beans.
Chop the kalbasa and potatoes to your preferred sizes (you can chop the green beans too if you want - I usually don't)
Season with some salt and pepper (I usually add garlic too)
Toss the kalbasa, potatoes, and green beans all together onto a single sheet of foil
Wrap the foil up completely in a dome shape, leaving a bit of empty space for convection.
Only thing left to do is throw it over a fire for 5-10 minutes.
The flavors meld together so well... In the summer I recreate this on my firepit and bbq in the backyard. Lol.