Spray the tortillas with cooking spray, place one on top of another and wrap the 4 tortillas in foil, place in the oven and warm them until they are ready to be used. Meanwhile, cook chorizo in a frying pan over medium heat for 5 minutes, crumbling them with a fork, drain excess oil. Remove from heat. Combine salsa and sriracha. Create the burritos by dividing eggs, salsa mixture, cheese and avocado among the tortillas. Fold and serve.