Preheat the oven to 200 °C; season the chicken and brown it in half the oil in a frying pan.
In a roasting tin, mix the onion, garlic, tomatoes, oregano, remaining oil and cinnamon, lay the chicken on top and bake for 25 minutes.
Take out the tin, stir the orzo into the sauce and pour in the hot stock.
Return the chicken and bake for another 25-30 minutes, stirring halfway, until the pasta is tender and has absorbed the liquid.
Serve with grated cheese; it keeps 3 days in a box; sprinkle with a spoonful of water and reheat covered in the microwave for 2-3 minutes, stirring halfway.
A Receptnaptár original recipe. Calories and protein are estimated.