We’ve also used parchment, and those turned out well; that’s generally more expensive though. (LOL! I re-use foil when it’s not real messed-up, too.)
http://www.thehungrytravelerblog.com/veggie-packets-vegetables-in-parchment/
Vegetable packets in foil. Add a hamburger patty with the veggies making it a Hobo’s meal. These were cooked and eaten a lot way back when. Recipe was in the recipe cards found in the Betty Crocker recipe box (remember those - and the laminated plastic cards in a plastic box? McCall’s had a box of cards as well...a tad more ‘exclusive’ ie: Crepes Suzette. Hobo’s easy in prep, pop in the oven and eat. One could use favorite vegetables in making it to their liking.