Da Spot   This hole in the wall may have the best dinner-to-go on the island. Husband-and-wife team Ahmed Ramadan and Ako Kifuji offer a quasi-Middle Eastern/Mediterranean menu. The trademark Egyptian chicken is a spice fest of cardamom, cumin and other alluring flavors. Food doesn't get any better for $6.50. The baklava has a cult following, and the smoothie menu may be the island's most extensive. Fans can also find Da Spot food at the University of Hawaii-Manoa's Sustainability Courtyard (they have a kiosk there), and the KCC, Kailua and Mililani Farmers Markets.   908 Pumehana St. 941-1313. 10 a.m.-9:30 p.m. Mondays-Wednesdays and Fridays-Saturdays; 10 a.m.-4 p.m. Thursdays. Cash only. $.