Mediterranean Meatball Tacos with Tzatziki, Feta and Arugula

Ingredients

• For the meatballs:
• 1 pound lean ground beef
  
• 1 egg, beaten
  
• ¹/₄ cup Panko breadcrumbs
  
• 3 garlic cloves, minced
  
• ¹/₄ cup red onion, small dice
  
• 1 teaspoon dried oregano (Mexican preferred)
  
• 2 teaspoons ground cinnamon
  
• 1 teaspoon ground cumin
  
• ¹/₂ teaspoon kosher salt
  
• ¹/₂ teaspoon ground black pepper
  
• 8 flour tortillas
  
• 1 recipe Tzatziki sauce (see below)
  
• feta cheese, crumbled
  
• arugula
  
• fresh dill, chopped for garnish
  

• Tzatziki Sauce
• 1 cup plain Greek yogurt
  
• 1 tablespoon lemon juice
  
• 1 garlic clove, minced
  
• ¹/₂ cucumber, peeled, seeded and minced or grated
  
• 1 tablespoon fresh dill, chopped
  
• ¹/₂ teaspoon ground black pepper