See which stories were trending on NRN.com this week.

NRN editors discuss McDonald’s x Mariah Carey, whether In-N-Out will open in Florida and Panera Brands going public with Danny Meyer

Plus, hear from the CEO of First Watch Chris Tomasso.

Starbucks customers can now order Taylor Swift’s favorite coffee drink

Starbucks’ collaboration with Taylor Swift is the latest celebrity restaurant brand endorsement to go viral.

Restaurant Brands International to acquire Firehouse Subs for $1 billion

The brand will join Burger King, Popeyes and Tim Hortons at the quick-service giant.

OSHA’s vaccine mandate is on hold pending litigation

The federal appeals court that will hear challenges to be selected by ping-pong ball lottery

Proof of vaccination mandates begin for restaurants, bars in Los Angeles

SafePassLA mandates launched Monday, soon requiring patrons to show proof of vaccination to enter restaurants, bars, gyms, movie theaters, and more.

Firehouse Subs sees global expansion opportunity in $1B RBI deal

José Cil, CEO of Burger King parent, and Don Fox, CEO of the sandwich chain, discuss opportunities of acquisition.

Coalition launches with broad goal to fix the compostable packaging conundrum

Compostable to-go containers may be on the rise, but they’re likely ending up in landfills. This group brings together stakeholders to find solutions.

Red Robin’s sales soften in Q3, but off-premises channel remains strong

Casual-dining burger brand adds Donatos pizza to 38 more locations in quarter.

McDonald’s signs new deals with DoorDash, Uber Eats

Burger giant is integrating third-party McDelivery platforms into smartphone app.

Inspire Brands opens first ghost kitchen serving Arby’s, Buffalo Wild Wings, Jimmy John’s, Sonic, Rusty Taco

Alliance Kitchen is located in Atlanta and will serve food from five of Inspire’s major foodservice brands (minus Dunkin’).