Chicken Cottage

Cuisine: Chicken

What’s the deal: Grab a FREE Chicken Fillet Burger! You just need to spend £6 on your first order via their app (incl a chicken burger), and your free burger will be waiting for you to redeem it on your second order.

When: Offer ongoing

Where: Nationally. Their London locations include those in Kilburn, Swiss Cottage, Walworth, West Kensington, Shepherd’s Bush … Find your local here.

https://chickencottage.com/app/

Tortilla

Cuisine: Californian-style Mexican 

What’s the deal: Sign up here for FREE birthday burritos! And leave them some feedback here – and they may give you a little something on them. And every time they launch a new special, members also get a free taster!

When: As above

Where: At their various branches, including Canary Wharf, Islington, Southwark, Swiss Cottage, Camden … Find your local here.

https://www.tortilla.co.uk/whats-on