How do you use a buffet server on a roaster oven?
How to Use a Roaster Oven Buffet Server Fill the removable pan of the roaster oven 1/2 to 3/4 full of water. Assemble the buffet server over the roaster oven according to the manufacturer’s instructions. Place the roaster oven lid over the top of the buffet server. Turn the heat on the oven thermostat down to 250 degrees Fahrenheit.