Mix crab, peppers, cilantro, and seasoning together in a small bowl.
Heat a small amount of olive oil in a medium frying pan over medium heat. Place one tortilla in heated oil, top with 1/3 of cheese and approx. 1 cup of seafood mixture.
Once cheese is melted and tortilla is golden brown, place another tortilla on top and flip the quesadilla to brown the other side.