The halibut I had last night could be fixed in one of those "hobo packets." Double the foil, as Steve suggests.

I put a little dab of olive oil in the bottom of a Pyrex personal-size baking container (substitute the foil) then place a thawed piece of wild-caught Costco halibut (you can't get it fresh enough in Texas to make it worth trying to buy fresh instead of frozen). Slice a few strips of onion (I always seem to have a partial onion in a container in the fridge, so this is slicing a from one side of a half, creating strips, but you could do a whole round slice and break it up). A quick grind of black pepper, then apply a couple of tablespoons of sour cream (drop it around in spots on top of the onion) then sprinkle over some dried dill. Bake it about 20 minutes until it's finished (I put it in a toaster oven at 350^o and let it rest in that oven for another 10 minutes or so after it finished baking.) I add a little salt after it is finished baking.

If you've spread out the onion pieces enough and the dabs of sour cream enough you can pick up a bit of everything in each flaky bite. Mmmmm!