Greek Meatballs with Feta Tzatziki

Ingredients

• 2 cups plain Greek yogurt
• 1 1/2 tsp minced garlic
• 2 tsp fresh chopped parsley
• 1 tsp dried mixed herbs
• Juice of 1/2 lemon (about 1 tbsp)
• 1 tbsp finely diced cucumber
• 1 tbsp crumbled feta cheese
• 1 lb lean ground beef
• 1 egg
• 2 tbsp crumbled feta cheese
• 2 tsp parsley
• 1 tsp minced garlic
• 1 tsp salt
• 1/2 tsp black pepper
• 1 tsp onion powder
• 1 tbsp olive oil
• Pita bread
• Sliced cucumber
• Thinly sliced red onion