Preheat large pan at medium heat.
First, place one tablespoons of butter in the pan and melt.
Now add a tortilla to pan.
Next, place (on half the tortilla) cheese, scallions, lobster, and more cheese on top.
Cook the tortilla for 1-2 minutes.
When the bottom of the tortilla is brown, fold the other half the tortilla over and press down.
Finally cut in half and enjoy! (Repeat for rest of quesadillas)