Cook More Than One Meal at a Time
You can dramatically reduce your energy costs in the kitchen by cooking three or four days worth of dinners at one time.  Keeping the oven door closed during the entire cooking process will also help save energy.  Opening the door just lets the heat out and makes the oven work harder. 

Use Small Appliances
You will consume much less energy by using a portable skillet or toaster oven than you would if you were to turn on your oven or stove.  This tip will come in handy on those mornings when you feel like a batch of hot, fresh pancakes right of the griddle.

Don’t Overuse the Burner
Those people with electric ranges can turn off the burner before you are actually finished cooking.  The burner continues to radiate residual heat that will be more than enough to finish the cooking process.  You will have saved an entire hour of energy if you just turn off the burner two minutes early each day for an entire month.