A low energy meal of beans and potatoes

Today was the first cold day of the autumn. 

I needed some warm food so I boiled some green string beans and pontiac potatoes on an electric stove. The heat from the stove gave me winter warmth in the apartment, in which I use no space heating. 

I boiled a kettle with just enough water to cook the food, because I believe it saves electricity to use an electric jug instead of heating a pot, to bring cold water to the boil. 

I used an electric timer to let me do other things, while the food cooked. 

I added the beans after the potatoes began to boil, thus saving water and energy by cooking them together. 

After cooking I poured the cooking water into a mug and I am drinking it right now. 

To the food I added tabasco sauce and tamari, a type of salt-free Japanese soy sauce, and ate with gusto!

The bowl and cooking pot are soaking in a little cold water, which will be easily enough to clean them later.