Another sunny Saturday morning — why are they always so bright in Miami Beach? — and your head is pounding from Friday night's indiscretions. Your stomach's demands are explicit and unyielding: something heavy, flavorful, absorbent, delicious, and quick. What's it going to be? More IHOP? Perhaps you'll allow us to whisper gently in your ear: "mofongo." What is this miracle tropical delicacy, beckoning so insistently on a hung-over Saturday morning? Jimmy Carey, chef of Jimmy'z Kitchen, a hole-in-the-wall strip-mall eatery just off Alton Road in South Beach, is here to help. Mofongo is a traditional Afro-Boricua dish -— a round lump of mashed fried green plantains, garlic, olive oil, and crunchy pork rinds, soaked in a rich tomato sauce with a kick. Jimmy'z makes it like no one else — a moist, textural clump of tangy flavors, available only Fridays and Sundays. Don't just lie there in bed trying to will away that headache while ignoring your neglected appetite. Jump up and say it with us: "mofongo!"