Butter the outside of the tortillas. Place them, butter side down in a skillet over medium heat.
Layer on cheese, avocado, and tuna. Sprinkle oregano and sliced olives. Top with the second flatbread tortilla.
Cook the fist side until the cheese begins to melt and the tortilla is crispy. Press together and flip to cook the second side until the cheese is completely melted and tortilla golden brown.
Slice in quarters and serve warm.
Notes
Adjust the tortilla portion to best fit your macros. I was stuffed after eating a full sized quesadilla. Next time I'll just have only large keto flatbread tortilla and cut it in half for the quesadilla.