Preheat your oven to 400°F (200°C).

In a large mixing bowl, combine the ground chicken, breadcrumbs, parsley, garlic, feta, sun-dried tomatoes, oregano, salt, and black pepper.

Beat the egg and fold it into the mixture until just combined.

Roll the mixture into balls about 1 inch in diameter.

Heat olive oil in a skillet over medium-high heat and brown the meatballs for about 5 minutes.

Transfer the browned meatballs to a parchment-lined baking sheet and bake for 10 to 12 minutes.

Squeeze fresh lemon juice over the cooked meatballs before serving.