Most hotels include breakfast, and some include dinner. There are countless coffee shops with delicious drinks and French pastries to enjoy, as well as sandwich shops. Count yourself lucky if you find a dish that does not include canned tuna!

Budget
Abid, 98 rue de Yogoslavie, tel: 216 1257052. You can get a solid meal such as lamb in macaroni for TD5.
Restaurante Les 3 Étoiles, Rue Mustafa M'barek. Very cheap and filling food such as couscous and salads.

Mid-range
L'Orient 7, Rue Ali Bach Hamba, tel: 216 71 252 061. close to porte de France. The steaks are bland, the fish good and local food such as Berber Lamb is excellent. The service is prompt.
La Mamma, Av de Carthage, tel: 216 71340423. Very cosy restaurant on several floors. Good italian inspired food. Has live music and is open to 3 am.
El Khalifa, rue d'Iran, tel: 216 22428470. close to Metro stop Nelson Mandela. Delicious West African food at very reasonable prices, popular with employees of the African Development Bank. Far tastier and friendlier than the typical mediocre Tunisian restaurant experience. Open for lunch only until 3pm, Monday through Saturday.

Splurge
Dar el-Jeld, 5-10 rue Dar el-Jeld (near the Prime Minister's residence, and the Youth Hostel), ? 71 560 916. Perhaps the best of the restaurants in Tunis, this restaurant pays attention to every single detail. You don't even open the door - just knock on the large yellow door, and they open it (this gives it the appearence of not being open). The food is excellent, and the management speaks English and French fluently, and can recommend various dishes. The menu is a bit complicated, with price categories, rather than prices, listed (check the last page for what each price category costs). The physical setting is inside a beautiful, tiled covered courtyard, and has private areas off to the side. As of March '09, prices for a main course ranged from 20-30, appetizer 7-9, and water or tea 3.5. Everything is recommended, though the couscous is simply good, but not incredible. 25-40 TD. 

Drink
Ladies, try to bring a man out with you, and be careful about what bars you frequent, because many are frequented only by men and prostitutes, and can get a bit rowdy.
Café M'Rabet cafe and restaurant.
Le Boeuf sur le Toit, 3 avenue Fatouma Bourguiba. The name means The Beef on the Roof, and trendy people come for food, drinks, live music, DJs, and a dance floor. 
Bar Jamaica, 49 Avenue Habib Boutguiba. On the 10th floor of the Hotel el-Hana International, this is a funky and popular destination for locals and foreigners, with music and outdoor seating available.