A walk through Little Haiti delights the olfactory senses. Exotic aromas from the islands waft by like enticing invitations. But there are few restaurants where one wants to sit. Why? Because take-out is the rule. And Fidele is the best. Be clear, this is no yuppie joint. It's located on a seedy stretch of Biscayne and a smudged Plexiglas window separates customers from cashier. Smells from a vacant field next door are sometimes unpleasant and neither clients nor proprietors speak much English. But for five to eight dollars, you can get perfect plantains, delicately flavored rice and beans, and unforgettable main dishes. Portions are huge, enough for two modest eaters. And you get a free soda to boot. Try the fried chicken, which is our favorite dish. The fried fish is another winner. Goat and conch are also surprisingly tasty. Don't forget the Haitian hot sauce; one container could rocket you to Port-au-Prince.