Follow these simple steps to create your Slow Cooker Beef Tacos:

1. Prepare the Beef: Trim excess fat from the beef chuck roast if necessary. Cut into large chunks for easier cooking.
2. Sear the Beef (Optional): In a skillet over medium-high heat, sear the beef chunks for about 3–4 minutes per side until browned. While this step adds depth of flavor, it’s not strictly necessary.
3. Add Ingredients to Slow Cooker: Place the seared or raw beef pieces into the slow cooker. Add the diced onion, minced garlic, diced tomatoes with green chilies, chili powder, cumin, smoked paprika, oregano, salt, and pepper.
4. Pour in Broth: Add the beef broth and lime juice to the slow cooker. Stir gently to combine the ingredients.
5. Set Cooking Time: Cover and set your slow cooker to low for 8 hours or high for 4 hours.
6. Shred the Beef: When done cooking, remove the beef from the cooker and shred it using two forks. Return the shredded beef to the slow cooker, mixing it with the sauce.
7. Taste and Adjust: Before serving, taste the mixture and adjust the seasoning if necessary, adding more salt or lime juice as desired.
8. Warm Tortillas: While the beef is finishing, warm the tortillas in a dry skillet over medium heat for about 30 seconds per side.
9. Assemble Tacos: Use a tortilla to scoop up some of the beef mixture. Top with your favorite toppings like cilantro, avocado, cheese, and salsa.

These straightforward instructions will ensure that your Slow Cooker Beef Tacos are flavorful and satisfying every time!