These are the largest sandwich chains in the U.S.

The Bottom Line: The parent company of Tender Greens, which filed for bankruptcy this week, is laying part of the blame on its heavier reliance on delivery orders.

Tech Check: All-in-one may be all the rage, but there’s value in being a one-trick pony.

The Bottom Line: Paul Mangiamele has vowed to bring the venerable casual-dining chain back for more than a decade. He finally fulfilled that promise. Here’s a look inside.