Preheat broiler. In a large skillet crumble and cook chorizo over medium heat until no pink remains. Drain in a colander. In a small saucepan heat salsa over medium heat until heated through.
Lightly coat a large baking sheet with cooking spray. Arrange tortillas, two at time, on baking sheet; top each with one-fourth of the cheese. Broil 3 to 4 inches from heat for 2 to 3 minutes until cheese is melted. Top each pizza with one-fourth of the warm salsa, cooked chorizo, avocado, green onions, and cilantro. Pass lime wedges.