Here's a good chart to reference. My typical line-up of organic vegetables (clockwise from top): yellow squash, asparagus, kale, butternut squash, zucchini, carrots. Other vegetables I often include: cauliflower, beets, arugula, onion, sweet potato. Rinse vegetables and chop into small pieces:
Add the chopped vegetables, cover and simmer over low heat for 15 minutes.
My breakfast simmers while I prepare lunch:these instructions or you can buy it at most health food stores.