Ingredients

1/3 cup fat-free plain yogurt1/3 cup reduced-fat mayonnaise1/4 cup chopped seeded peeled cucumber1/4 teaspoon Worcestershire sauce1/4 teaspoon garlic powder1/8 teaspoon salt1/8 teaspoon pepperDash dried thymeBURGERS:1/2 cup finely chopped sweet onion1/2 cup finely chopped green pepper1 teaspoon ground cumin1/4 teaspoon salt1/4 teaspoon pepper1/4 teaspoon cayenne pepper1-1/2 pounds extra-lean ground turkey1/2 cup thinly sliced cucumber6 slices tomato6 hamburger buns, split

Preparation

For cucumber sauce, in a small bowl, combine the first eight ingredients. Cover and refrigerate until serving.

In a large bowl, combine the onion, green pepper, cumin, salt, pepper and cayenne. Crumble turkey over mixture and mix well. Shape into six patties.

Using long-handled tongs, moisten a paper towel with cooking oil and lightly coat the grill rack. Grill, covered, over medium heat or broil 4 in. from the heat for 5-7 minutes on each side or until a thermometer reads 165° and juices run clear.

Place cucumber and tomato slices on buns; top each bun with a burger and about 2 tablespoons cucumber sauce.