Barbecued Pork Quesadillas

½ lb shredded barbecued pork
½ cup barbecue sauce
¼ cup fresh cilantro
5 green onions, thinly sliced
1 cup shredded Mexican four-cheese blend
2 T butter, softened
Toppings:  sour cream, sliced green onions, barbecue sauce

Stir together first 4 ingredients.
Spoon pork mixture evenly on tortillas; sprinkle with cheese.  Fold tortillas in half, pressing gently to seal.  Spread butter on both sides of quesadillas.
Heat a large nonstick or cast-iron skillet over medium heat, and cook quesadillas 3 minutes on each side or until browned.  Cut each quesadilla into quarters, if desired.  Serve with desired toppings.