Ingredients

1/2

cup mayonnaise

1/4

cup finely chopped parsley

1 1/2

teaspoons grated lemon peel

1 1/2

teaspoons minced garlic

4

(4-oz.) boneless skinless chicken breast halves

2

tablespoons olive oil

1/4

teaspoon salt

1/8

teaspoon pepper

2

small zucchini, cut lengthwise into 1/4-inch-thick slices

4

(1/4-inch) slices onion

4

sandwich buns, split

4

leaves leaf lettuce

Preparation

GRILL DIRECTIONS: In small bowl, combine all gremolata mayonnaise ingredients; blend well. Set aside.

Heat grill. Place 1 chicken breast half, boned side up, between 2 pieces of plastic wrap or waxed paper. Working from center, gently pound chicken with flat side of meat mallet or rolling pin until about 1/4 inch thick; remove wrap. Repeat with remaining chicken breast halves. Brush chicken breast halves with 1 tablespoon of the oil; sprinkle with salt and pepper.

When ready to grill, place chicken on gas grill over medium heat or on charcoal grill 4 to 6 inches from medium coals. Cook 10 to 16 minutes or until chicken is fork-tender and juices run clear, turning once.

Meanwhile, brush zucchini and onion slices with remaining tablespoon oil; place on grill. Cook about 10 minutes or until tender, turning occasionally. To toast buns, place cut sides down on grill during last 2 to 4 minutes of cooking time.

Spread 1 tablespoon gremolata mayonnaise on bottom half of each bun. Top with lettuce. Place grilled vegetables evenly onto lettuce. Top each sandwich with chicken breast half, 1 tablespoon gremolata mayonnaise and top half of bun.