Location
The CentralWorld near the BTS station Siam or Chit Lom is a good starting point for shopping and good for orientation to get some Street Food. The Phetchaburi Road is not far away from the CentralWorld shopping center. When you follow the main road Ratchadamri Road to the next big cross, then you arrived at The Palladium Shopping Center. Just turn left and you are on the Phetchaburi Road. The next 200 meters between The Palladium and The Pantip Pratunam Plaza offers your more opportunities for shopping and for get some finest Street Food.
Offer
Depends on the place, depends on the day time, depends on the day. Not every day or at every time you will find some Street Food stalls on the Phetchaburi Road. Some stalls starts in the evening, some stalls starts at the weekend, some stalls starts on events. But usually there should always some stalls be there. As at this place also is the Pratunam Fashion Market, and not far away the Bayoke Sky Hotel, there are some restaurants and Street Food stalls here.
At Siam you probably will find the most big shopping malls in the center of Bangkok, and for a good and relaxed shopping, you also need some good and tasty food. In this area there are countless restaurants and Street Food stalls, take your time for shopping and take your time for a little snack or complete meal.