Gather your ingredients: flour tortillas, fresh blueberries, mozzarella cheese, honey, cinnamon, butter, and optional powdered sugar.

In a medium bowl, combine the fresh blueberries, honey, and cinnamon. Gently mix until the blueberries are well-coated.

Heat a large skillet over medium heat and add the butter. Once melted, place one tortilla in the skillet. Sprinkle half of the shredded mozzarella cheese over the tortilla, spoon the blueberry mixture over the cheese, and top with the remaining mozzarella cheese.

Carefully place the second tortilla on top. Cook for about 3-4 minutes until the bottom tortilla is golden brown. Flip the quesadilla and cook the other side for another 3-4 minutes until golden and cheese is melted.

Remove the quesadilla from the skillet, let it cool for a minute, cut into wedges, and dust with powdered sugar if desired. Serve warm.