Prepare the Eggs: Whisk the eggs with a pinch of salt in a bowl. Heat a non-stick skillet over medium heat and pour in the eggs. Swirl the pan once to create an even layer and shape the eggs like an omelette. Cook until the edges are set.

Dice Green Onions: While the eggs are cooking, dice the green onion and then add them to the eggs.

Add Some Shredded Cheese: Place some mozzarella on the top of the eggs.

Assemble on Tortilla: Place a large flour tortilla in the skillet on top of the eggs and push down a bit to get it to stick. Be careful not to burn yourself.

Flip the Eggs and Tortilla: Place a pan lid over the pan and flip the entire pan upside down. The tortilla and eggs will be on top of the lid, and you can slide it back into the pan.

Top with Cheese: Sprinkle the remaining shredded cheese over the eggs and onion.

Fold and Cook: Fold the tortilla in half and cook until the bottom is golden brown and crispy, turning the heat up a notch. Cook for about 4 minutes. Spray the top with some oil.

Flip and Finish: Flip the quesadilla and finish cooking until the other side is golden brown and delicious. Cook for about another 3 minutes.

Cut and Serve: Remove the quesadilla from the skillet, let it cool slightly, then cut into wedges. Serve with your favorite toppings.