The Guy is back, with a hearty yet fairly low-calorie warm bento.

The Guy (also known as Max) and I have a shared resolution this year: We Must Lose Weight And Get Fitter Or Else. He has high blood pressure, I have high or disturbingly fluctuating blood sugar. But we both have this basic problem, that we love to eat good food. And, especially during the day, we need our tummies comfortably filled or we get cranky.

One solution to this problem: soup for lunch!

Previously I showed you how to make instant miso soup balls to which you just add boiling water to make a hot cup or bowl of soup. But even I don't want miso soup all the time. Instant soup mixes are an option, but they are usually rather salty, and don't contain a lot in terms of nutrients. So I set about experimenting with making my own instant soup concentrate. After some trial and error, here's a formula for a Mediterranean tasting vegetable soup concentrate that works pretty well. It does take some mostly unattended time to cook down, so it's a good project to do over the weekend to stock up for upcoming bento lunches.

There are many kinds of convenient instant miso soup packs out there. I like to make my own 'instant' miso soup balls though. They are dead easy to make. All you need to do is combine about 1 to 2 teaspoonsful (for an average size miso soup bowl) with whatever ingredients you have on hand. All you need is a source of boiling water at lunchtime, which most offices have. Put the miso ball and ingredients in the bowl (or you can use a mug), add hot water, and let it sit for a few minutes while the ingredients expand and flavors amalgamate. This technique is often recommended in Japanese bento books with a healthy or macrobiotic focus, since instant miso soup mixes are often loaded with preservatives and MSG and so on.