Steps
1. Heat a large pan over medium heat.
2. Arrange one tortilla in the pan and sprinkle cheese, bacon, and tomato over it.
3. Place the second tortilla on top.
4. Add a small amount of butter to the pan, if necessary.
5. Fry the quesadilla until golden and cheese is melted, about 2-3 minutes per side.
6. Cut into slices and serve warm.