The Sprout People have quite a bit of info: http://www.sproutpeople.com/grow/sprouting.html

Generally, you sprout them in darkness, then bring them into light to 'green up'.

Please beware of feeding sprouts to babies. From a site that lists things that babies shouldn't eat: "The bacteria Salmonella can exist in all forms of sprouts, (alfalfa, clover and radish), even ones that are grown at home. Refrain from serving sprouts, or any foods prepared with sprouts, to your baby." http://healthmad.com/children/foods-babies-shouldnt-eat/

And there are always mushrooms...

Sue