From what acquaintances out there tell me, Flaming Gorge is overflowing with burbot. You'll catch more than your fill if you want.
I've only targeted them through the ice. We fish for them at night (the traditional time). Mostly late February-March when they come shallow to spawn. Tipups with lights, either live or dead bait on the bottom, not exactly traditional. When possible we fish directly in front of the house, sit inside at the fireplace with a drink and watch for lights. Jump on the sled and haul them out. Very civilized.
We catch them from time to time during the day on tipups, and if you get on a school they readily fall for a jig.
I think they taste ok, but kind of bland. The texture reminds me of blackfish, the poor man's lobster thing. I'm sure a little seasoning would do wonders, but I suck as a cook. Kind of neo-barbarian. Many Mainers love them, so somebody knows something I don't.