In a medium sized fry pan over medium heat, melt the coconut oil and toss in the sliced nectarine.
Toss for 2-3 minutes then add in the onions
Cook until the onions are almost translucent, 4-5 minutes.
Sprinkle in the brown sugar and toss to fully coat, reduce heat to medium-low and allow to cook until the nectarines are soft and caramelised.
In a second skillet, over medium heat place in a tortilla and cook until golden brown, flip and sprinkle the whole thing with 3/4 of the mozzarella cheese and all of the Feta.
Place the caramelised nectarine mix on top of the cheese
Sprinkle the remaining mozzarella on top and top with the second tortilla. Once the cheese is mostly melted, flip and cook for 1-2 minutes until gold brown.
Remove to a plate and drizzle with balsamic glaze. Enjoy!