Mushroom Goat-Cheese Quesadillas

SERVES 8 These quesadillas have a deep, earthy, winelike flavor and elegant aftertaste. The sweet caramelized onion and woodsy portobello mushroom blend perfectly with the mild goat cheese. Make sure you wipe the large mushroom caps clean with a damp towel before marinating. These are wonderful for company or for a special dinner party. Serve with a field green salad and a glass of pinot noir or merlot wine for a complete epicurean experience.