Preheat the oven to 425°F.
Combine tomato, onion, cilantro, lime juice, cumin and salt in a small bowl, and set aside.
Lightly coat one side of each tortilla with cooking spray. Place one tortilla, sprayed side down, on a baking sheet. Top with chicken and cheese. Top with remaining tortilla, sprayed side up.
Bake 10 minutes, or until golden brown. Cut into 4 wedges. Serve 2 wedges with ½ cup salsa.
