The roots of a Labor Day side dish

You’re planning your Labor Day menu, and you’re looking for a light, refreshing summer side dish to offset all that grilled meat. How about root vegetables?
Huh? Root vegetables for summer?
“Roots are not just a winter thing,” Robert Schueller, director of public relations for Melissa’s Produce, said at a recent cooking demonstration for Diane Morgan’s encyclopedic cookbook “Roots: The Definitive Compendium with More Than 225 Recipes” (Chronicle Bo