It seems as though cooking radishes and radish greens has fallen out of favor or some how become lost in the US.
Maybe it has in Europe too I dont know.
One time I served some radish greens in a salad and someone asked what they were and said how good they were.
When I told them they said WHAT I had no idea you could eat the greens.
Take the radish like an icicle type saute them in butter and garlic with a little black pepper and at the very end wilt the greens with it.
Worth