Grilled Bell Pepper-Bun Turkey Burgers with Avocado Goddess Sauce

Preheat grill to medium-high.

Cut tops and bottoms off bell peppers and remove the seeds. Stand the peppers up and cut down through the middle of each to make 2 halves. Flatten the pepper halves with the palm of your hand. (You'll have 8 pepper halves.) Gently mix turkey, 2/3 of the scallions, 1/4 teaspoon salt and pepper together in a medium bowl. Shape the mixture into four 4-inch patties.

Lightly coat the bell pepper pieces with cooking spray and sprinkle with the remaining 1/8 teaspoon salt. Grill until softened and charred in places but still firm, 1 1/2 to 2 minutes per side. Grill the burgers, turning once, until an instant-read thermometer inserted into the center registers 165°F, 5 to 7 minutes per side.

Meanwhile, place avocado, cilantro, parsley, mayonnaise, vinegar, anchovy paste and the remaining scallion in a mini food processor. Process until smooth. Place each burger on a bell pepper piece. Smear with about 2 tablespoons avocado sauce, then top with a lettuce leaf and another pepper piece.