Preheat your oven to 400°F.
In a large bowl, combine ground chicken, breadcrumbs, Parmesan cheese, parsley, oregano, garlic powder, salt, pepper, and egg. Mix until well combined.
Form the mixture into meatballs, about 1 inch in diameter.
Place the meatballs on a baking sheet lined with parchment paper.
Drizzle olive oil over the meatballs and bake for 20-25 minutes, or until cooked through and golden brown.
While the meatballs are baking, bring chicken broth to a boil in a medium saucepan.
Add orzo and cook according to package instructions, usually about 8-10 minutes.
Once cooked, drain any excess liquid and stir in lemon zest, lemon juice, cherry tomatoes, and feta cheese.
Serve the meatballs over the lemon orzo, garnished with additional parsley if desired.