Creating Slow Cooker Beef Tacos is a simple process. Just follow these easy steps:

1. Prepare the Beef: Start by trimming any excess fat from the beef chuck roast. Cut it into chunks if desired.
2. Season the Beef: In a small bowl, mix together the chili powder, cumin, paprika, garlic powder, onion powder, salt, and black pepper. Rub the seasoning mixture all over the beef.
3. Sear the Beef: Heat the olive oil in a skillet over medium-high heat. Sear the beef on all sides until browned (about 3–4 minutes per side). This step adds depth of flavor but can be skipped if you’re in a hurry.
4. Add Beef to Slow Cooker: Transfer the seared beef to the slow cooker. Add the chopped onion, minced garlic, and beef broth.
5. Cook on Low or High: Cover the slow cooker and cook on low for 8 hours or on high for 4 hours, until the beef is tender and easily shreddable.
6. Shred the Beef: Once cooked, remove the beef from the slow cooker. Use two forks to shred the meat.
7. Return to Slow Cooker: Return the shredded beef to the slow cooker and stir to combine with any residual juices and spices.
8. Warm Tortillas: While the beef is being shredded, warm the tortillas in a skillet or microwave for about 20 seconds until soft and pliable.
9. Assemble Tacos: Fill each tortilla with shredded beef and top with your choice of diced tomatoes, shredded lettuce, cheese, sour cream, avocado, or cilantro.
10. Serve: Enjoy your flavorful Slow Cooker Beef Tacos with your favorite sides or toppings.

By following these simple steps, you’ll create an incredible dish that is sure to impress.