Grate garlic and shallot. Or whiz in food processor.
Put ground turkey in a medium sized mixing bowl.
Add salt, pepper, and grated garlic and shallot.
Form four 4 oz patties.
Prep Avocado Lime Dressing
Whiz garlic, herbs, lime juice, sea salt, red pepper flakes, and sweetener in a blender or food processor until blended. Stop and scrape down any unblended herbs. As motor is running add olive oil in slow steady stream. Whiz until emulsified.
Pour into a small mixing bowl.
Cut avocado into 1/4" chunks. Stir into dressing.
Cut tomato into 1/4" chunks (if using) and stir into dressing.
Preheat grill for 10-15 minutes.
Let burgers sit out at room temperature as grill preheats, or for up to 20 minutes.
Drizzle burgers with olive oil (both sides).
Grill for 8-10 minutes or to 165F.
You can cook to 160F if you let your burgers rest for 5-10 minutes before serving. They will continue to cook the remaining 5 degrees while retaining their juices in that time.
I omit the bun and serve the burger over grilled or roasted veggies.
Pour avocado lime dressing over burgers (and veggies) and serve. Enjoy!