These chuck roast slow cooker tacos feature tender meat served on warm tortillas with vibrant and flavorful toppings: pickled onions, guacamole, and diced mango.
Begin by thinly slicing the white onion. Place the onions in the bottom of the slow cooker. Next, add the roast and place the spices directly on the top of the roast (you can flip the roast and add spices to both sides). Then add the broth, lime juice, and honey to the slow cooker. Cook on low heat for 7-8 hours.
Thinly slice the red onions and place them in a medium bowl with the water, white vinegar, sugar, and salt. Mix until well combined, cover, and place in the refrigerator while the roast cooks.
After the roast has cooked for about 6 hours, use two forks to gently pull it apart to begin shredding it a little bit. This will allow the meat to retain more moisture. Replace the lid and continue to cook on low until the 7-8 hours are completed. Finish shredding the meat.
Optional: Use tongs to put the shredded meat into a parchment lined baking dish. Place the dish in the oven to broil for about 2 minutes to get a few crispy, browned bits. Do not broil for too long or else the meat will become tough.
Mash the avocados in a small bowl and mix in the chopped cilantro, fresh lime juice, and salt. Dice the mango.
Next, warm the tortillas (in the microwave wrapped in a damp paper towel or on a pan on the stove).
Assemble the tacos: place meat on the tortillas and top with guacamole, pickled onions, diced mango, and a sprinkle of Tajin seasoning.
Notes
If the meat is not shredding well, it is likely that it will need to cook for longer. It needs to cook long enough that it will be tender to easily shred.
If you're not wanting to make tacos, you can use this Mexican shredded beef for other types of Mexican cuisine: burrito bowls, quesadillas, and nachos for example.