I have this roaster oven ,but lost the manual. I want to cook a turkey. It comes with the racking tray. Do i use this tray for the turkey or just put it on tray? Also it says to add water on the botton of this tray. Do i add water on the tray for the turkey? Do i add foil to the turkey or not? What else do you add on this roaster oven i need some cheap meals?