Greek Hamburger Recipe

For the Hamburger Recipe:

• 2 pounds ground lamb
• 1/2 cup plain greek yogurt
• 1 tablespoon dried oregano
• 1/3 cup finely chopped onion
• 3 cloves garlic minced
• zest of one lemon
• 1/4 - 1/2 teaspoon crushed red pepper flakes
• 1 1/2 teaspoon salt
• 7 ounces feta crumbled into large pieces
• olive oil for brushing
• 1 cup sliced cucumbers
• 2 tomatoes sliced
• mint leaves for garnish
• 6 small pita pockets or 3 large halved

For the Yogurt Sauce:

• 1 cups plain greek yogurt
• 1/2 cucumber peeled
• 1/2 teaspoon salt
• 1 clove garlic smashed
• 1 tablespoon olive oil
• zest of one lemon + 1 tsp. lemon juice
• 1 teaspoon fresh chopped mint