Crisp tortillas on both sides in a little olive oil over medium high heat until golden, watching carefully.
Peel peach and cut in half, sprinkle with brown sugar for added sweetness if desired.
Brown peach and prosciutto in skillet or on a grill, until just starting to brown.
Place prosciutto on one tortilla, slice peaches halves and place them on top of prosciutto.
Top peaches with a slice of a mild, good melting cheese such as Havarti, Gouda, or Fontina.
Top with another tortilla and return to skillet. Cover with a pot lid and warm quesadilla over medium low heat until cheese has melted.
Cut into 1/4ths to serve. Makes 4 pieces, or 1 serving. For appetizer servings plan on 1-2 quarters per person.
Notes
if you use larger tortillas, increase the ingredients to make it nice and full. You might want to add more cheese too, it helps “glue” the ingredients together. A larger tortilla will also yield more servings, cut it into 1/6ths or 1/8ths.