Preheat oven to 400°F. Combine oil and lemon juice in a bowl and rub over chicken pieces. Arrange chicken in the bottom of a 9×13 inch flameproof casserole or baking pan. Season with salt, oregano and white pepper. Bake 30 minutes, turning chicken pieces after 15 minutes. Remove casserole from oven and transfer chicken to a platter. Set aside. Stir tomato sauce, stock and water into casserole dish and cook over medium high heat until mixture comes to a boil. Stir in pasta and bring to a boil. Add chicken pieces in a single layer. Return to oven and bake another 30 minutes, until chicken is tender. Serve sprinkled with cheese.
