Mung Bean Stew with Pork and Wilted Greens

When I was first working in New York and broke all the time, this stew saved me—it was cheap to make and super-nourishing. Back then, I biked everywhere because it was free, and in the summer my friends and I would ride to the beach, 14 miles (22.5 km) round trip, and come back after hours of swimming, cold and ravenous. I’d work up a huge pot with mineral-rich whole green mung beans, which don’t need to be soaked before cooking. (You can use hulled, split mung beans, too, known as moong da