I sliced one of these up and sauteed it with my Tilapia, along with a few flowers from the Japanese Mustard and my chicory plant.
Here is the rest of the story: Tilapia: A Breakfast Treat
I read two interesting things somewhere: 1) that in a city near Tokyo they cut mazes out of the brilliant yellow fields of flowering Mustard, and that 2) this is the plant used to make Canola oil. After I planted mine from seeds this Spring, I noticed that the sell the bedding plants at WalMart. How cool.