Southbank Centre Food Market is an outdoor market near the London Eye and the Thames that sells street food from around the world. Options include kimchi rice, naan wraps, katsu, samosas, dosas, and Turkish flatbread, all cooked in front of you. You can sit on the nearby grass and eat while looking at the London Eye, and Waterloo station is close by. Outdoor seating is limited, so finding a table on weekends is difficult.