Preheat oven to 300ºF.
Crumble El Abuelito Chorizo sausage meat. Heat 1 tbsp. of oil on a skillet and sauté chorizo until it turns golden brown for about 6 to 8 minutes.
Remove from heat and drain excess oil.
Pull the Oaxaca cheese into strings and place on a medium baking dish. Bake until cheese has melted and the top reaches a light golden color, approximately 12 minutes.
Remove from the oven and sprinkle with chorizo crumbles. Serve immediately with tortillas.