We use something very similar to what ependydad linked - it's a bit smaller, but of a similar design (different brand) except that ours has a raised edge to prevent things from rolling off. I got ours on Amazon (rebel grill, or something like that I think.)
There are only two of us (wife and me) so it works very well, is easily packed up and stowed just about anywhere, and simple to clean up. You can adjust the height on these pretty easily and with the use of that lower tray you can cook over the campfire or over charcoal.
P.S. I'll take an order of Spring as well, please! It's going to snow, again, tomorrow :P
1975 Westfalia (VW)
2014 Rockwood A122