6 oz. jack or cheddar cheese, thinly sliced
3 to 4 plum tomatoes, thinly sliced
3 to 4 fresh or pickled jalapeno chilies, thinly sliced
4 scallions, finely chopped
1/2 C. Fresh cilantro sprigs
3 T. melted butter
Set up the grill for direct grilling and preheat to medium-high. Place the tortillas on the grill and warm just until pliable, 10 seconds per side. Transfer the tortillas to a work surface. Arrange a few cheese, tomato, and chili slices on half of each tortilla. Top with scallions and cilantro. Fold the tortillas in half. Brush on both sides with melted butter. The quesadillas can be prepared an hour or 2 ahead to this stage. Return the quesadillas to the grill and grill until the tortillas are golden-brown and the cheese is slightly melted, 1 to 2 minutes per side. Take care not to let the quesadillas burn. Serve at once either whole or cut into wedges.
Variations: You can stuff quesadillas with just about anything-goat cheese and sun-dried tomatoes, gouda cheese and roasted peppers, sliced grilled chicken, fish, or pork. You could also use corn tortillas instead of flour. The possibilities are limited only to your imagination.