This place is a great concept. It is a house with a garden backyard transformed into a restaurant. Every 3 days they offer a different world cuisine ranging from Afghan, Uzbek, Persian, Cuban, Thai, Peruvian, Swahili, Korean, etc. The portions are sufficient, there are usually 2-3 types of entrees/salad, 2 main dishes, rice, and dessert. The food is very tasty and flavorful. You pay what you think is fair but the drinks have a set price. The main dishes are usually chicken and meat done according to the set cuisine for that day, however I would recommend adding other types of main dishes as well, not necessarily chicken and meat, as I believe there are many out there.
The service is very fast despite the place being crowded most of the times, the owner is polite and checks on the guests often.
This has become my favorite restaurant in Lebanon as I love different world cuisines and they are found in this one place!
I would also recommend adding different cuisines for diversity.
PS: some say the place is hard to find, actually it's quite easy. They have put the location on google map, just follow it and it will lead you right to it. Also most Lebanese know Mar Mkhayel area.