Maybe I'm wrong about the color changing, GB. I know the purple string beans turn green...perhaps it was just an assumption. I guess we'll find out.
Since I have two heads of cauliflower, I'm going to steam half of each to eat cooked, and use the other half in a salad. I have to pick up some greens first. DH is really grossed out by the thought of purple and orange cauliflower. I sort of understand; I just got him to eat the white stuff a couple of years ago, and now here I am springing these odd colors on him.