One of the smaller roasting pans that you can buy measures 15 1/4" x 11 1/4" x 2 1/4". This is probably the smallest you can purchase for roasting chicken.
Well, My first question is why are you greasing a roasting pan ?
To use a roasting pan effectively for cooking, preheat the oven to the desired temperature, place the roasting pan in the oven to heat up, season the meat or vegetables, place them in the hot roasting pan, and cook until done, basting occasionally for added flavor and moisture.
The best type of pan to use for roasting a Thanksgiving turkey is a heavy-duty roasting pan with a rack. This type of pan allows for even cooking and helps to prevent the turkey from sticking to the bottom of the pan.
An average small roasting pan is about 16.5" long, 12.5" wide, and 2.5" deep. This is an example from Amazon: http://www.amazon.com/KittAmor-80109-Small-Roasting-Pan/dp/B001F7ASYK
glass pan
The equipment typically used for roasting includes an oven, a roasting pan, and a meat thermometer.
For roasting a 20-pound turkey, you should use a large roasting pan that is at least 16 inches in length and 13 inches in width.
Using an electric roasting pan for cooking offers benefits such as even cooking, precise temperature control, and convenience.
To cook a turkey in a roasting pan with a cover, preheat the oven to the desired temperature. Place the turkey in the roasting pan, cover it with the lid, and roast it in the oven until it reaches the recommended internal temperature. Make sure to baste the turkey occasionally to keep it moist.
A turkey should be cooked in a roasting pan for about 15 minutes per pound at 325F until it reaches an internal temperature of 165F.
A good alternative to a roasting pan for cooking a large piece of meat is to use a baking sheet with a wire rack placed on top. This allows the heat to circulate around the meat, similar to a roasting pan, and helps the meat cook evenly.
Some alternative methods for roasting without using a roasting pan or rack include using a baking sheet with a wire cooling rack placed on top, using a cast iron skillet or Dutch oven, or even wrapping the food in foil and roasting it directly on the oven rack.