I saw this on Bizarre Food, they called them turnip green pop-ups, never heard of it before but had to give it a try. The real name for them is "rabe", I couldn't find any reference to "pop-ups" on the net, turns out their proper name is greens rabe.
Pick the flowering tops of your greens (turnip, kale or collards) in the spring, saute they with butter and minced garlic and a little salt and pepper. Put a couple tablespoons of water in the pan and cover to steam for 5 minutes or so after they wilt down.
The taste like a cross between greens, broccoli and brussel sprouts, might good if you love greens.
In the garden;
In the pan;
On the plate with deer heart and other stuff, I put a sprinkle of parmesan cheese on them;