Feta Cheeseburger

Ingredients

• 4 ounces feta cheese, crumbled
• 4 ounces cream cheese
• 14 cup plain yogurt or 14 cup Greek yogurt
• 14 cup pepperoncini pepper, sliced
• 2 tablespoons scallions, sliced
• 12 teaspoon lemon zest, minced
• salt, to taste
• fresh ground black pepper, to taste
• 2 lbs ground round or 2 lbs ground chuck
• salt, to taste
• fresh ground black pepper, to taste
• oregano, to taste
• crushed red pepper flakes, to taste (optional)
• 4 hoagie rolls or 4 ciabatta rolls, split, toasted
• red leaf lettuce
• tomatoes, slices
• thinly sliced cucumber
• yogurt, for rolls (only if needed)