I know avocado IN your burger instead of on top sounds weird. Trust me, it keeps the turkey from drying out and shrinking on the grill. Serve these as a lettuce wrap, or as a burger bowl or in a soft bun with all the toppings. The burger mixture is much easier to form if you chill the meat for 30 minutes to an hour after you mix in all the seasonings.

If you don’t care for fish sauce, skip it and double the tamari.