Dee Lite is the main restaurant of "Double Tree Sukhumvit Hotel" at Soi 26 of Sukhumvit road, Bangkok. In a stylish decoration, friendly staff and with a huge lunch buffet. They do serve breakfast, lunch and dinner. Daily open from 6:00am to 10:30pm. Lunch buffet is 750++ but they also have a a-la-cart menu. On Sunday they have a Sunday brunch. I had a-la-cart "Reuben Sandwich" with is said to be served with "sauerkraut" but I did find only a salad. But never mind it was delicious and a bit big as snack. As drink I had a fresh apple juice. Total price was about 500 Thai baht ... not cheap but for the location & service a acceptable price. Highly recommended. See Dee Lite @DoubleTree.
Update Sep'2022 : This lunch was in 2015 but I was there recently and of course is Dee Lite still up & running.