1. Heat a large skillet over medium heat and spray w/spray.
2. Divide the salmon, cheese, peppers, and green onions among two tortillas. Top with remaining two tortillas.
3. Put the quesadillas in the heated pan, one at a time, and cook, flipping once, until the cheese is melted and the tortillas are golden brown on both sides, 4 to 5 minutes per side. Remove to a large cutting board and slice into fourths.
4. Serve each person half a quesadilla garnished w/one slice of avocado, 1/4 cup salsa, and 1 TB cilantro.