Utensils for stir frying ground beef
I haven't cooked beef for a while, but a wooden spatula works very well, as it can break up clumps and is safe for non stick. I prefer the straight shape of the one I've got to any of my nylon spatulas, that are more designed for lifting.

The second implement matters less, but I may use a slotted nylon spoon so it's ready to lift the meat out of the fat, or if I'm not going to do that, a wooden spoon.