Patties

• 65 grams bulgur wheat
• 455 grams lean ground beef
• ½ yellow onion, about 225 grams, minced or grated on the large holes of a box grater
• 2 tablespoons finely chopped fresh Italian parsley leaves
• 2 tablespoons chopped fresh chives
• 1½ teaspoon chopped fresh thyme leaves
• 1¼ teaspoon kosher salt
• 3 garlic cloves, minced or pushed through a press
• 1 teaspoon ground cumin
• ¼ teaspoon crushed red pepper flakes
• ⅛ teaspoon freshly ground black pepper

Sauce

• 120 milliliters plain yogurt or buttermilk
• 60 milliliters tahini
• 4 teaspoons fresh lemon juice
• 1 medium garlic clove, minced or pushed through a press
• ¼ teaspoon kosher salt

• 1 medium cucumber, peeled and thinly sliced crosswise
• 6 thin slices red onion, cut in half crosswise
• 4 pita pockets (standard size)