What type of mock chicken does Field of Greens use in their Eden Burger?

Question

I love the Eden Burger from Field of Greens in Houston. The mock chicken patty they use doesn't taste like any other I've ever eaten. It's "stringy" like a chicken patty and not breaded. Any ideas?

Answer 1

They are made out of eggplant.

Answer 2

It was probably made out of seitan, I looked with no luck. But a lot of mock meats are made from it