Ingredients

1/2

medium cucumber, peeled, seeded and shredded

1

container (8 oz) plain yogurt

4

medium green onions, chopped (1/4 cup)

1

clove garlic, finely chopped

1

tablespoon olive oil

1

teaspoon lemon juice

1/4

teaspoon salt

1

lb lean (at least 80%) ground beef

1/2

cup frozen chopped spinach, (thawed) squeezed to drain

1/3

cup crumbled feta cheese

1/4

cup finely chopped red onion

2

cloves garlic, finely chopped

1/2

teaspoon salt

1/4

teaspoon pepper

8

whole wheat hamburger buns, split

2

medium tomatoes, sliced

4

leaves romaine lettuce, torn in half

Preparation

Place shredded cucumber in clean dish towel; squeeze to remove any excess liquid. In small bowl, mix cucumber and remaining sauce ingredients. Cover; refrigerate until serving time.

Heat gas or charcoal grill. In large bowl, mix all burger ingredients except buns, tomatoes and lettuce. Shape into 8 patties, 1/4 inch thick. Place patties on grill over medium heat. Cover grill; cook 5 to 8 minutes, turning once, until meat thermometer inserted in center of patties reads 160°F.

Spoon 2 tablespoons sauce on bottom half of each bun. Top with burger, tomato and lettuce. Cover with top halves of buns.