IN THE FALL of 2020 (yes, that 2020), chef Kevin Tien opened Moon Rabbit , a Vietnamese restaurant in D.C. He’d worked in finance, so he was used to stress, but Covid was rough . Running, a sport he’s loved since middle school, helped him through. In late 2022, Tien even cofounded Distance in the Dark, a group of chefs who logged late-night, post-shift miles. After Tien became a dad last year, he switched to early mornings. Now he runs five or six days a week, sometimes with his kid in a stroller. “Running has always been a nice getaway where all I can hear is my breath, my feet on the pavement,” Tien says. Recovery meals, like his take on steak and eggs, are high in protein with tons of flavor.…