At nighttime prices go up and fares have to be negotiated in advance. Two dollars should be enough for a 20-minute drive. Many addresses have house numbers, but I haven't discovered any logic in them. Some houses have even two house numbers. Off course the local Ecuadorian cuisine is worth a try, but you can also find Mexican, French, Thai, Israeli etc restaurants in Quito.
Many Ecuadorian restaurants have a set menu, which is cheaper than eating a la carta .
A set menu should be 2 dollars or cheaper and often includes a starter and a drink. Sometimes restaurants add service charges and VAT to their prices. Although usually this is mentioned on the menu, it is worth asking if this is included. Most bars are located in La Mariscal and most foreigners can be found here. Beer is the most common drink.