To assemble: Place three tortillas on the counter and spread one third of cream cheese mixture on each one and sprinkle one third of the salmon on top of it and place the other tortillas on top. In a saute pan, melt a tsp of butter and cook the quesadilla until golden brown on each side and the filling is warm. Press down on the quesadilla with a spatula while it is cooking so that it sticks together. Cut like a pie into six triangles and serve with lemon and salsa.