Mixed Up Deli Bento Box Lunches using scallion ranch cream cheese spread; Deli Cold Cut Tacos, DIY Macaroni Salad, and Deli Stuffed Mini Peppers.

Bento boxes are gaining steam as a perfectly portioned, creative, fun way to pack and serve lunch—and they’re not just for kids. The box hails from Japan and first hit the scene in the 16th century.

Patricia Kelly Yeo is an LA-based writer and editor who covers food, health, wellness and (occasionally) science and travel. Ask her about her favorite omakase. Two months ago, Mark Okuda was serving ...