Pat the chuck roast dry and season generously with salt and pepper.
Heat olive oil in a large skillet over medium-high heat. Sear the chuck roast on all sides until browned.
Transfer the seared roast to your slow cooker.
Add the chopped onion and minced garlic to the same skillet and cook until softened, about 5 minutes.
Stir in the diced green chilies, tomato sauce, beef broth, minced chipotle peppers, adobo sauce, cumin, chili powder, oregano, and cayenne pepper (if using).
Pour the sauce mixture over the roast in the slow cooker.
Cover and cook on low for 8-10 hours or on high for 4-6 hours, until the beef is tender and shreds easily.
Remove the beef from the slow cooker and shred it using two forks.
Return the shredded beef to the slow cooker and stir it into the sauce.
Warm tortillas according to package directions.
Serve the shredded beef in warm tortillas with your favorite toppings.
Notes
For extra flavor, you can add a lime to the slow cooker with the beef.
This recipe is great for meal prep. Store shredded beef in an airtight container in the refrigerator for up to 4 days.
Adjust the spice level by adding more or fewer chipotle peppers and cayenne pepper.
Consider this recipe for your meal planning needs.
Nutrition
Serving Size:1 taco (approx. 1/8 of recipe, without toppings)