Mediterranean Lamb Meatball Sandwiches with Yogurt Sauce

Ingredients (18)

• + 1 small onion add to pantry
• + 1 cup fresh mint leaves add to pantry
• ✓ 3 cloves garlic
• + 1 pound ground lamb add to pantry
• + 3 tablespoons ground sweet paprika add to pantry
• + 1 tablespoon ground cumin add to pantry
• + 1 teaspoon salt add to pantry
• + 1 teaspoon ground black pepper add to pantry
• + cooking spray add to pantry
• ✓ ¼ cup vegetable oil, or as needed
• + 1 (6 ounce) container Greek yogurt add to pantry
• + 2 tablespoons tahini add to pantry
• ✓ 1 ½ teaspoons lemon juice
• + 4 sheets lavash bread add to pantry
• + 1 (4 ounce) package crumbled feta cheese add to pantry
• + 1 cup shredded lettuce add to pantry
• + ½ cup diced fresh tomatoes add to pantry
• + ½ cup cucumber matchsticks add to pantry