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Slow-Cooker Shredded Beef Tacos

Slow-cooker shredded beef tacos with fork-tender beef that easily shreds after 6 hours on low. Serve it piled into warm tortillas with a taco bar of fresh toppings and warm cooking liquid for drizzling.
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Prep Time 10 minutes
Cook Time 6 hours
rest 10 minutes
Total Time 6 hours 20 minutes
Servings: 8 servings
Course: Dinner
Cuisine: Mexican
Calories: 520
Ingredients Equipment Method Notes

Ingredients
  

Beef and aromatics
  • 3 lb beef chuck roast
  • 1 cup beef broth
  • 1 packet taco seasoning
  • 0.5 white onion white onion sliced
  • 4 clove garlic minced
  • 0.25 salt and pepper to taste
Taco assembly
  • 1 warm tortillas
  • 1 lettuce
  • 1 tomato
  • 1 cheese
  • 1 sour cream
  • 1 salsa

Equipment

  • 1 slow cooker

Method
 

Cook the shredded beef
  1. Place the beef chuck roast in a slow cooker and sprinkle with taco seasoning, so the surface is coated. No temperature is needed yet—set up before turning it on.
  2. Add beef broth, sliced white onion, and minced garlic to the slow cooker. This ensures the beef cooks in seasoned liquid and aromatics.
  3. Cover and cook on low for 6 hours until the beef is extremely tender and shreds easily with a fork, with the liquid visibly simmering around the roast. Start checking at hour 5:30 for doneness.
Shred and warm everything
  1. Remove the beef to a cutting board and let it rest for 10 minutes, so shredding stays juicy. The meat should still be warm and steamy.
  2. Shred the beef into bite-sized pieces using two forks until no large chunks remain. Aim for strands you can easily scoop into tortillas.
  3. Return the shredded beef to the slow cooker and stir to combine with the cooking liquid, coating it evenly. Let it sit for a few minutes so the strands re-warm in the sauce.
Assemble tacos
  1. Warm the tortillas, then fill each one with shredded beef. Keep them soft and pliable so they fold without cracking.
  2. Top the tacos with lettuce, tomato, cheese, sour cream, and salsa in whatever combinations you like. Arrange toppings for quick assembly and even coverage.
  3. Serve with the warm cooking liquid on the side for drizzling over the tacos. This adds extra moisture and boosts the taco flavor.

Notes

Pro tip: for the easiest shredding, pull the roast right when it’s tender enough to fall apart with a fork, then shred while it’s still warm. Store leftovers in an airtight container in the fridge for up to 4 days; reheat in the microwave or in a pot with a splash of cooking liquid. Freezing is yes—freeze shredded beef (with some liquid) for up to 3 months and thaw in the fridge before reheating. Dietary swap: use gluten-free taco seasoning and warm corn tortillas if you need a gluten-free meal.