@EdgeOErin when I think of veggie burgers I am expecting herbs, pulses and legumes maybe some tomato puree along side a medley of vegetables.

My workplace veggie burgers are made with rice, herbs, vegetables and mashed potatoes.
Our local Aldi have chickpeas with beetroot burgers, a 2nd type with sweet potato and the freezer often has spicy bean burgers.

Sometimes @stueytheround will make fresh veggie burgers.