Island Poké

Cuisine: Hawaiian

What’s the deal: ​Sign up for their app and you’ll get £5 to redeem on your next visit.

When: Ongoing

Where: Their branches include those in Battersea, Bank, Wembley, Broadgate, Camden, Canary Wharf, Fenchurch, Fitzrovia, Islington, Richmond, Wimbledon … Find your local here.