For the Sauce:
1 small carrot, roughly chopped
1 1/2-inch piece ginger, peeled
2 tablespoons rice wine vinegar
1 tablespoon toasted sesame oil
1 tablespoon low-sodium soy sauce
Pinch of sugar
salt and ground pepper
For the Burgers:
1 pound sushi-grade tuna ground
2 tablespoons plus 1 teaspoon olive oil
2 tablespoons soy sauce
Juice of 1/2 lime
1/4 cup chopped fresh cilantro
1 tablespoon grated fresh ginger
salt and ground pepper
1 cup spicy sprouts, for garnish
4 whole-grain hamburger buns
1/2 avocado, sliced
1. Blend sauce ingredients in a food processor until smooth. Set aside.
2. Lightly combine burger ingredients and form into four patties. Grill until cooked to desired doneness.
3. Place burgers on buns, garnish with avocado and sprouts, and sauce.