One tortilla per person would be a very generous dessert portion; this recipe makes enough for 5-6 people.
4 oat-bran or whole wheat tortillas
8 oz Nutella
1 ripe banana, thinly sliced, or 1 pint strawberries, trimmed and thinly sliced
2 Tbsp unsalted butter
Lay the tortillas on your work surface. With a spoon, spread each one with Nutella, leaving a margin of at least half an inch all the way around. Arrange banana or strawberry slices in a single layer on one half of each tortilla, and fold the tortilla in half to make a semicircle.
In a large nonstick frying pan, melt the butter over medium heat. If your pan is large enough, place two of the folded tortillas in the pan. Cook for 2-3 minutes until brown on the bottom, flip, and cook for an additional 2 minutes until the second side is browned. Remove to a cutting board, and cook the remaining two quesadillas. Cut each quesadilla into three pieces, and serve warm.