When cooking vegetable and just about everything else it is very important not to over cook the product. The vegetables should not be mush, that is to say that they should still be crispy, but tender to the bit and retain their colours. Steaming of the vegetables is the healthiest way of preparing them. If you have to boil them, use only enough water to just cover them and have that water boiling before placing the vegetables in. Once the vegetables go into the water, return it back to a boil as fast as possible.
