Purchase a one-half size foil steam table pan with dimensions of 12 inches by 10 inches by 4.5 inches.
Use a craft knife to cut a series of holes at one end of the pan that measure ½ inch by 2 inches. Place these holes in a row – side by side – approximately 1 inch apart.
Create another row of holes 1 inch beneath the first row, and add succeeding rows down the length of the pan.
Fill the foil pan with carrots, potatoes or the food that requires steaming.
Set the food-filled foil pan on top of a 6-quart stewpot full of water.
Invert an 8-quart stainless steel bowl, and place it on top of the food-filled foil pan.
Turn the burner on to medium, and steam the food as you would when using any other type of steamer.