Chain's "mission to elevate our menu," includes an emphasis on innovative mac & cheese dishes.

Many have increased prices -- or, like Norcross, Georgia-based Waffle House, added a 50 cent surcharge per egg to customer bills,

The Shack Burger, first available on Delta flights out of Boston, will now be served on the carrier's planes out of four other airports.

In SpotOn study, 32% of operators expressed concern about their overall financial stability, citing such factors as supply chain disruptions.