In a large bowl, combine all the burger ingredients until well mixed.
Form into ~3-in. diameter patties. (They'll be soft and may not hold their shape quite so well, so you might want to use a grill pan, and also non-stick spray since there's not much fat in there.)
Grill until turkey's internal temperature is at 165 F.
While the turkey burgers are grilling, prepare the sauces! Mix the ingredients for each sauce into a separate small bowl.
When the burgers are done cooking, top each one with a dollop of sauce and a spoonful of the hemp-seed/red onion/mushroom mixture. Serve with a side of greens.