Begin by heating a non-stick skillet over medium heat. Add a small pat of butter and let it melt until it bubbles.

Crack one of the large eggs directly into the skillet, seasoning it with salt and pepper. Cook for about 3-4 minutes until the whites are fully set but yolk remains runny.

With the skillet still warm, lay one flour tortilla flat in the pan. Sprinkle half of the shredded cheese evenly over the tortilla.

Carefully place the fried eggs over the melted cheese, followed by slices of avocado. Top with the remaining half of the shredded cheese.

Place the second tortilla on top of the filled quesadilla, gently pressing down. Cook for 2-3 minutes until golden brown.

Once fully cooked, remove the quesadilla from the skillet and slice it into wedges. Serve immediately while hot.