Although it doesn't sport neon lights or a drive-through window, Amos's Juice Bar in North Miami Beach serves healthy and good food fast. You can sit in a booth surrounded by brightly painted palm trees and giant cartoon fruit. Or grab a seat at the counter next to the Birkenstock-clad regulars who don't flinch at the traffic whizzing by on busy Dixie Highway. The place is open daily from 8:00 a.m. until 6:00 p.m. Weekdays at lunch hour you may have to hustle for a seat or call in your order for take-away. Specialties include hummus, falafel, tabbouleh, tuna, blackened fish or chicken, plus many salads and fresh-made juices and smoothies. Sandwiches and salads range from four to seven dollars. Smoothies go for around $2.50. A favorite is José's Special, an ambrosial concoction of carrot juice, coconut milk, banana, pineapple, and honey. For hard-core partiers, the root tonic is the ticket. Says chef Craig Lewis: "It's a blood purifier and it's good for sinuses and hangovers. It'll give you a great sex life, too." The potent remedy, which sells for just one dollar per shot, is made from roots and barks of plants like sarsaparilla, mauby, eucalyptus, strong back, Irish moss, and ginger. It looks like a cloudy tea but tastes like Listerine mixed with mud. Amos swears by it. Hey, if it don't kill ya, it'll cure ya.