ExCeL London
The food and drink prices at ExCeL are driven up by its function as an event venue. The best cheap eats nearby are in the supermarkets, which are helpful for things like picnic supplies (fruits, nuts, and baguettes) and freshly made sandwiches, salads, and pasta dishes. Portable, quick, and packaged in recyclable materials, supermarket meals are hard to beat for price and convenience anywhere in the city — especially southeast London.