Dee Dee
And thai thai on prajak road, the main street in nong khai, are two chinese-style diners right next to one another that serve good thai and chinese food. they are open later than most other restaurants. "thai thai" is open later, but "dee dee" generally has better food.
Daeng Naem Nueang
Along the mekong on rim kong road slightly downstream from 'warm up' and just upstream from the tha sadej market, is a vietnamese restaurant widely acclaimed among thai and vietnamese residents of nong khai. the staff are friendly, but not all proficient in english. they also offer pre-made take-away packages of 'naem neuang' a delicious vietnamese dish if you want to eat at home instead.
Warm Up
The most popular bar with young locals is Warm Up, which is located on the Rimkhong riverside road west of Thasadej market, and also accessible from the promenade. This area also has the largest concentration of farang bars and guesthouses. And floating on the Mekong river close by, below Wat Hai Sok, is the romantic Gaia Bar (http://www.mutmee.com/010...)
German Bakery
The German Bakery at the corner of Meechai and Haisok has very good bread.
The majority of Nong Khai locals eat out at the dozens of restaurants and bars along the Rimkhong the riverside road at the east end of town. Food here is cheaper and often better than in the town centre. English is not always spoken but increasingly Nong Khai restaurants have menus in more than one language.
Prajak road
There are also many Thai food vendors along Prajak road that sell excellent cheap food.
Im Im Dim Sum
Serving dim sum, noodle, fried snacks, coffee and tea. located in downtown nong khai, soi sook pracha near the pp sport centre.
Ruan Thai Coffee & Breakfast
Rimkhong road warm up. run by a very pleasant young thai woman who does her best to speak english. the prices are a little high, but the food is excellent and the restaurant itself is also quite nice.
Nong Khai Home Cooking
On prajak road & soi pho sri 4. private western or thai home cooked meals. breakfast, lunch, dinner. private events or catering/buffets. the chef formerly worked at don's cafe in phuket. (http://nong-khai-home-coo...)
Chayapone market
Other markets, including the Chayapone market between Meechai Rd and Kaeworawut Rd, near the Thai Lao Riverside Hotel, the Wednesday evening market near the Nongkhai Grand Hotel, the morning market near the bus station, and the other market near the sunken chedi at the east end of town, also have cooked/uncooked food.