Some lunches necessitate a nap. Indian buffets, for example, with their rich coconut curries, fried samosas and plump pakoras, always have me yawning before I've finished my naan. Now there's a new cuisine to add to my list: Colombian food. Teeming with carbs of every kind—plantains, potatoes, rice, corn, yucca—this fare is not for the faint of appetite. At El Cafetal, between Kibrom's Restaurant and The Goodness Land in the Boise International Market, the deep fryer is alway