In a large bowl, combine ground beef, parsley, garlic, onion, salt, oregano, paprika, egg, and crumbled feta. Mix gently until combined.
Roll mixture into 18–20 small meatballs.
Place crushed pine nuts on a plate and lightly coat each meatball.
Heat olive oil in a skillet over medium heat.
Cook meatballs in batches for 8–10 minutes, turning occasionally until browned and fully cooked.
Transfer cooked meatballs to a plate.
In a blender or bowl, combine Greek yogurt, cucumber, dill, lemon zest, garlic, mint, sun-dried tomatoes, olive oil, and feta cheese.
Blend or mix until creamy.
Spread sauce onto a serving plate or bowl.
Arrange meatballs over the sauce and garnish with extra herbs if desired.
Serve with pita, rice, or salad.