If you like beer, you like pizza and you work in the City of London, then check out the Pelt Trader near London Cannon Street.
They have 16 beers on tap and a selection of giant pizzas - all 18 inches of it (12" also available). It's as simple as that.
We ordered the pepperoni, chorizo and red onion pizza. The GF and I couldn't finish it (I let myself down), but the bartender was kind enough to provide us with a takeaway box to ensure none of it was wasted.
They also do 'beer sticks' - dried meat in stick format, which are perfect for snacking on while you sip your drink. I certainly wouldn't mind going again to try some of the other pizzas.
Nearest Tube: Monument, Bank, Mansion House
Nearest station: London Cannon Street
Address: Pelt Trader, Arch 3, Dowgate Hill, EC4N 6AP