For the Beef:
- Add oil to a large cast-iron skillet over medium-high heat.
- Once the oil is hot, add the Chuck Roast to the skillet and sear on each side, just enough to brown.
- Add the seared beef to a crock pot. Top with bouillon powder and enchilada sauce.
- Cover and slow cook on low for 10 hours.
- When ready, remove the Chuck Roast from the slow cooker and use two forks to shred.
For the Mac and Cheese:
- In a saucepan over medium heat, melt the butter.
- Add the flour and whisk constantly for 1-2 minutes (or until the mixture turns light brown).
- Remove from heat and gradually pour in the warm milk, whisking constantly.
- Return the pan to the heat, and whisk for another 3-5 minutes or until thickened.
- Add the salt, garlic powder, ground mustard, and cayenne pepper and stir to combine. Remove from heat.
- To avoid lumps, slowly add the cheese, stirring constantly as it melts.
- Pour the cheese sauce over the top of the cooked elbow macaroni. Stir to combine.
- Place the warmed shredded beef meat on the macaroni and cheese and then pour the warmed juice over the meat. Add onion, jalapeño, and cilantro.
- Enjoy!