One of the benefits of the LSE's location is the availability of great dining options. The lawyers and business people working in the area around campus usually eat lunch out of the office, and so there are more places to eat at than any student could possibly go to in a lifetime. Since these places are designed to accommodate the lunch crowd, they also perfectly accommodate the average LSE student who typically eats breakfast and dinner back at the dormitory and lunch around campus. Sandwiches are probably the item of choice for most students, and there are plenty of places to get a tasty sandwich at a good price.
The one problem is that, considering there are so many people in the area, at lunchtime most places become overcrowded. This means that it is often hard to find a place to sit, and students are forced to take their food to go and eat it back on campus. Even though the lunchtime options are extremely varied and convenient, there are not too many restaurants immediately around campus for having a nice dinner. However, like with anything you could possibly need in life, if you are willing to walk no more than 10 minutes off campus, you can find whatever you need, including fantastic restaurants of a higher quality than the lunchtime places frequented by students.