How To Bake Chicken, Chorizo, And Cornish New Potatoes Tray Roast. Happy Monday. Fancy making a Chicken, Chorizo, And Cornish New Potatoes Tray Roast? This healthy one-tray roast makes it super easy to cook a roast dinner any day of the week. Season: Spring/Summer Skill Level: Novice Preparation Time: 15 minutes | Cooking Time: 1 Hour