Ingreadient

• 1/2 of a 6-ounce carton plain fat-free greek yogurt
• ½ cup shredded, seeded cucumber
• 1 ½ teaspoons red wine vinegar
• 1 ½ teaspoons snipped fresh dill
• 1 clove garlic, minced
• ¼ teaspoon kosher salt
• nonstick cooking spray
• 1 cup chopped onion
• 2 tablespoons water
• 1 pound lean ground beef (95% lean)
• 1 egg
• ¼ cup dry whole-wheat bread crumbs
• 4 teaspoons dried oregano, crushed
• 2 teaspoons dried marjoram, crushed
• 3 cloves garlic, minced
• ½ teaspoon kosher salt
• ½ teaspoon black pepper
• 8 low-carb pita bread rounds
• 3 medium roma tomatoes, sliced
• ½ cup thinly sliced cucumber
• ¼ cup thinly sliced red onion
• ½ cup crumbled reduced-fat feta cheese (2 ounces)