Spiced chickpea and courgette burgers make for a very good vegetarian burger. I always keep chickpeas in the cupboard. They are very nice to add to a chicken curry. I sometimes use sweet potatoes instead of the carrots, and you get great flavour from the crunchy peanut butter and the curry paste.
Simply Better recently launched their Irish Angus Ultimate Steak burger. It is made from a variety of cuts, all good quality Irish beef, and I have been testing and tasting various combinations for the past year. A nice job and I think we got it right.