This is purslane.

Purslane
Most people would call purslane a weed.  Fewer people know that you can eat it. The internet tells me that purslane is really good for you, so it must be true.

I was 14 when I was hired by my grandfather as a professional weed puller and lawn mower.  “Professional”, because I was paid $2.50 an hour for my mad weed pullin’ skillz.

(I just realized those two items are in my current job description, except now I make $0.00 an hour.  Does that mean I’m back to amateur status?)