Here are the mouth-watering free lunches served at companies like LinkedIn and TripAdvisor

Tech giants like Google, Twitter, and Facebook are infamous for piling on the employee perks, and free lunch every workday can add up to $2,500 worth of savings a year.

But they're not the only ones getting in on the action. Plenty of smaller companies have realized the value in keeping their people's bellies full and winning employee loyalty.

Here's a roundup of some of the most delicious offerings out there.