I don't have a recipe, but I recently discovered the meatless meatballs from Trader Joe's are vegan. I don't think there is soy. I think it's chick peas. I've been thinking that I want to smash them on a burger bun and try it as a hamburger.

Here is the most popular vegan burger recipe from my favorite vegan food blog. It has no soy! It looks so good, and one day I will make it!

http://kblog.lunchboxbunch.com/2012/02/easy-sweet-potato-veggie-burgers-with.html

I've tried a lot of fancy burgers and found some nice ones, but a while ago I tried the basic recipe from Jeff Novick, not expecting much because it looked too basic. It was the most amazing hit with everyone and I haven't made any others since. It was really just a can of red kidney beans mashed up with half a cup of brown rice, half a cup of oats and a tbsp of ketchup. He said to use salsa, but I wasn't sure exactly what that meant. Then you can just adjust herbs and spices to what you fancy. We've tried Mexican flavours, curry flavours and Chinese styles. I make mine into 4 burgers and bake them in the oven along with some fat free fries. They are a touch on the drier side of burgers, but once you get a bit of salad on the bun, then you're in heaven! I believe that Jeff has a whole DVD on making burgers, which I must get based on the original recipe.