If using pre-cooked pork: Place the pork cubes in the slow cooker and toss them with 1- 1 1/2 cups of flour, ensuring the pork is evenly coated. Skip to step 3 (add vegetables to slow cooker.)
If using raw pork: Place the pork cubes in the slow cooker and toss them with 1- 1 1/2 cups of flour, ensuring the pork is evenly coated. Set aside.
If desired, heat a small amount of oil in a skillet over medium-high heat and sear the floured pork cubes until browned on all sides, about 6-8 minutes. This step adds more depth of flavor but can be skipped to save time. Set the pork aside.
In the slow cooker, add the 1/2 cup of olive oil, then layer in the onion, garlic, and floured pork (whether raw or pre-cooked).
Stir in the roasted green chiles, can of Ro-Tel, and drained or diced tomatillos.
Sprinkle the cumin, Mexican oregano, ground coriander, and smoked paprika over the ingredients in the slow cooker.
Pour in the chicken broth, ensuring it covers the pork and vegetables. Stir gently to combine.
Cover the slow cooker and cook on low for 6-8 hours or on high for 4-5 hours, until the pork is tender and the flavors have melded together.
Once cooked, taste the mixture and adjust seasoning with salt and pepper as needed. If the consistency is too thick, add more chicken broth or water to loosen it up.
Serve the pork green chile as a stew, or use it to smother burritos, eggs, fries, or anything you like. Garnish with fresh cilantro if desired.