If it's grassfed hamburger, don't drain it--eat it with the meat.
If it's grainfed hamburger, drain it and throw it away. Just make sure to compensate by eating a healthy fat from something else (unheated olive oil, for example, or fish oil.
I just nuke sweet potatoes in the microwave on the "baked potato" setting, and then if I have the oven on, put it in there to crisp up the skin a bit.
Zone diet on and off for several years....worked, but too much focus on exact meal composition
Primal since July 2010...skinniest I've ever been and the least stressed about food