Gather all ingredients, including tortillas and cheese.

Heat a non-stick skillet over medium heat and add olive oil.

Place one tortilla in the skillet and sprinkle cheese on one half.

Fold the tortilla over and cook until golden brown, about 2-3 minutes.

Flip the quesadilla and cook for another 2-3 minutes until both sides are crispy and cheese is melted.

Remove from heat, let cool slightly, slice into wedges, and serve with salsa.