This is: Nopales on the hoof, so to speak.
WTF: Prickly pear cactus pad.
And what's the botanic name for that? You know, just in case. Opuntia ficus-indica
Uh, it's a cactus. WTF? Pull out the thorns, peel it, cut the pad into strips, simmer them until tender and call them nopalitos.
What does it taste like? Tart green beans. Who'd have thought there would be two foods in the world that taste like green beans?
Who eats them? In Mexico, nopales are standard fare in mama's kitchen. For convenience, they're also canned. Just like green beans.
Can I eat them too? Sure. A few pickled nopalitos garnish many of the offerings at Rosario's and top the Mexican chef salad ($11.99)