• 2 tablespoons extra-virgin olive oil
• 6 ounces shiitake mushrooms , stems discarded and caps sliced
• 1/2 teaspoon chopped fresh thyme leaves
• Salt and freshly ground pepper
• 4 ounces robiola cheese , softened
• 8 (6-inch) flour tortillas

In a large nonstick skillet over a medium flame, heat oil until hot. Add mushrooms and cook, stirring, 4 to 5 minutes or until softened. Stir in thyme, and season to taste with salt and pepper. Remove skillet from heat.

Spread cheese on 4 tortillas and divide mushroom mixture evenly among them. Top each with a second tortilla and press together lightly. (May be prepared to this point up to 4 hours ahead and refrigerated, covered, until ready to cook and serve.)

In a medium nonstick skillet, or on a grill, over medium heat, cook each quesadilla 2 minutes; flip with a spatula and cook another 1 to 2 minutes. Repeat with remaining quesadillas. Cut each into 6 wedges.