Heat about 1 tbsp fat in the bottom of a dutch oven. Add the onions. Give a dash of salt and pepper.
When the onions are just beginning to soften, chop the guajillo pepper small and add. (Keep the liquid!)
When the onions are softened add the tomatoes, ground cumin, coriander, chili powder, pepper, and salt, and saute a couple minutes.
Add the liquid from the soaked pepper, the garlic, the green chilies.
Add the strips of steak, bacon, fresh oregano, salsa verde, and strained tomatoes.
Stir to mix, place lid on dutch oven, and bake at 300F for 3 hours.