The troop camped at Broad Creek this weekend, where lows on Saturday morning were around 26 degrees F. To get the cheerfulness going, we had a small wood fire, in a commercially available fire pan. We didn't cook in the big pan; we had propane-fired camp stoves to boil water.
The breakfast was "eggs-in-a-bag", with whatever ingredients we had, tossed into a plastic bag, and then boiled until appropriately consistent. I had brought my wood-burning backpack stove, so I took a few charcoals from the troop fire and boiled my own cooking/cleaning water.
Yum! Hot breakfast, Leave No Trace way -- with no cleanup, plus a built-in hand warmer.
Too bad I forgot the chili powder. "Bam!"