Ambrosia
The largest and the latest international standard restaurant in town with a Karaoke corner, seats up to 500 people across 2 floors. Has a huge menu of Continental, Indian, Thai, Chinese, Indonesian and Bangladeshi dishes. Fully air conditioned and very smart.
The people of Chittagong love oily and spicy food. This can be a problem for foreigners and lead to upset stomachs. If you are a foreigner you should consider sticking with better restaurants and eating in large hotels. Never eat green salad which comes with your meal as you will not know if it has been washed in sanitized water. Just a handful of restaurants in town use sanitized water to wash salad and this is a recipe for explosive diarrhoea.
One oddity in Bangladesh is that restaurants advertise themselves as, for example, "Zaman Hotel and Restaurant" but do not operate a hotel. Where you eat at one of these establishments you can tease them by demanding a room. NB: one room stores also have signboards advertising themselves as 'Department stores'.
Shaad Snacks
A friendly place serving the usual fast food snacks - rolls and buns filled with chicken, beef or vegetables, microwaved to a spongy perfection as you order. They've got a good range of sweets as well. the food at these snack places is not healthy for foreigners
Zaman Hotel (there are 13 Zaman hotels in Chittagong)
The menu contains no foreign dishes and this is not a place where foreigners typically eat, though it falls at the top end of middle class Bangladeshi restaurants. The place is clean, the food is OK, the service is good. You can ponder the wisdom in the quote on the menu: "For super disk with quality food to avoid cooking please step with whose family at Zaman Hotel." There are two restaurants of the same name on the same block - this one is the most southerly, with the huge neon sign on the roof.
Zaman Hotel (Agrabad)
The Zaman hotel at the Agrabad circle has the best food of the Zaman hotels. The Chicken Biriyani is particularly good coming with a large piece of chicken, an egg, rice, and a delicious sauce. The environment is more worn than hotel Zaman at the GEC circle. But the food is better. Since there are virtually no good places to eat on a budget in Agrabad it is worth checking this place out.