Marinade chicken – Combine Marinated Chicken ingredients in a bowl and set aside for marinate for 20 minutes. (Skip if in hurry, can also do overnight)
Preheat oven to 180°C/350°F (160°C fan).
Brown chicken (raw inside) – Heat 1 tablespoon olive oil in a a large oven proof skillet or pot over high heat (Note 3). Cook chicken until lightly browned but still pink inside. Remove from skillet.
Saute vegetables – Add 1 tbsp olive oil, garlic and onion. Saute for 1 minute, then add zucchini and bell peppers/capsicum. Cook for 2 minutes.
Add everything else – Add risoni, oregano, chicken broth, tomato, tomato paste, salt and pepper.
Scatter chicken and cherry tomatoes across the surface (don’t stir in).
Bake 15 minutes – Once the liquid comes to a simmer, transfer to the oven (no lid) and bake for 15 minutes (or until risoni is just cooked, tender but still firm). There may be liquid on the surface still – that’s good!
Drizzle with lemon – Remove from oven, drizzle with lemon juice. Garnish with feta and fresh oregano leaves, if desired, then serve.