Chef Vortigaunt

Vortigaunt chefs are two vortigaunts briefly shown in chapter Black Mesa East of Half-Life 2. They work in the kitchen of the resistance base, preparing food for resistance members and refugees from City 17. They can be briefly seen by Gordon from the elevator on it's way to Eli's lab.

Occupation
Both vortigaunts wear cooking hats and are seen using kitchen equipment. One of them is preparing food from what appears to be several vegetables, along with a standard headcrab. This, as well as fast headcrab being cooked by the All-Knowing Vortigaunt in his cave indicates that headcrabs are a delicasy among vortigaunts and possibly human rebels.

Fate
By the time the Combine attacked, those two, along with other vorts, were most likely taking part in defending the base from Overwatch Soldiers. Wheter they survived or not is unknown.