thecuriousgardener.com
Swiss Chard, Rainbow Chard (Beta vulgaris). Easy to grow, really tasty & healthy, and look great! - A Curious Gardener
I think it's one of the most rewarding leafy veggies to grow, and as a colour-lover, its also a beautiful addition to the veggie patch, in decorative containers, or grown mixed in with non-edibles.