Dinner · Part 3 of 3: Tips & recipe card

Slow-Cooker Cheddar Fajita Beef Barbacoa Tips, FAQ & printable recipe

Name: Slow-Cooker Cheddar Fajita Beef Barbacoa
Prep time: 15 min
Cook time: 8 h
Total time: 8 h 25 min
Cuisine: Mexican-inspired
Ingredients: 2 1/2 lb beef chuck cubes; 3 bell peppers (red, yellow, orange), sliced; 1 red onion, sliced; 2 tbsp fresh lime juice; 8 oz cream cheese, softened; 2 cups shredded sharp cheddar cheese

By Clara Weller · Oct 29, 2026

Shredded beef barbacoa with melted cheddar and peppers in a slow cooker

Prep: 15 min
Cook: 8 h
Total: 8 h 25 min
Serves: 6

Includes 10 min resting

Tips for success

For the most flavorful barbacoa, sear the beef cubes in a hot skillet with a little oil before adding them to the slow cooker.

This adds a deep, caramelized crust that enhances the overall taste. It's an extra step, but well worth it for special occasions.

If you prefer a thicker sauce, remove the beef and vegetables with a slotted spoon, then simmer the remaining sauce on the stovetop for a few minutes to reduce.

You can also whisk in a slurry of cornstarch and water. For a thinner sauce, add a splash of beef broth or water.

Variations

Spicy Chipotle: Add 2-3 chipotle peppers in adobo sauce, minced, along with a teaspoon of adobo sauce, to the slow cooker with the vegetables. This adds a smoky, spicy depth that complements the beef.
Beef and Bean: Stir in a drained can of black beans or pinto beans during the last 30 minutes of cooking. This stretches the dish and adds extra fiber and heartiness.
Taco Style: Season the beef with a packet of taco seasoning or a homemade blend of chili powder, cumin, and smoked paprika. Serve in hard or soft taco shells with your favorite toppings.
Low-Carb Bowl: Skip the rice and serve the barbacoa over a bed of cauliflower rice or mixed greens. Top with avocado slices and a dollop of sour cream for a satisfying low-carb meal.

Storage and make-ahead

Fridge: Store in an airtight container in the refrigerator for up to 4 days.
Freezer: Freeze in a freezer-safe container for up to 3 months. Thaw overnight in the refrigerator and reheat gently.
Reheat: Reheat in a saucepan over medium-low heat, stirring occasionally, until heated through. Add a little beef broth or water to restore the sauce's consistency.

Store leftovers in an airtight container in the refrigerator for up to 4 days. The flavors will continue to meld, making it even more delicious the next day.

Let leftovers cool completely, then keep them covered so they stay moist and full of flavor.

You can assemble the entire dish in the slow cooker insert the night before, cover, and refrigerate.

In the morning, place the insert in the slow cooker and cook as directed. You may need to add 30 minutes to the cooking time since the ingredients start cold.

Serving ideas

Serve the barbacoa over fluffy cilantro-lime rice for a complete meal. The rice soaks up the creamy sauce beautifully. Alternatively, pile it into warm flour tortillas with a sprinkle of chopped cilantro and a squeeze of lime for a handheld meal.

This dish also pairs well with a simple side salad or refried beans. For a low-carb option, serve it in lettuce cups or over cauliflower rice. Leftovers can be used in quesadillas, burritos, or even as a topping for nachos.

Frequently asked questions

Can this be made ahead and reheated?

Yes, this dish is perfect for meal prep. Cook the barbacoa, let it cool, and store it in an airtight container in the refrigerator for up to 4 days. Reheat gently on the stovetop or in the microwave, adding a splash of broth or water to loosen the sauce if needed.

Can this be frozen?

Absolutely. Portion the cooled barbacoa into freezer-safe containers or bags and freeze for up to 3 months. Thaw overnight in the refrigerator and reheat on the stovetop or microwave. The sauce may separate slightly upon reheating; stir well to bring it back together.

What if the sauce is too thick?

If the sauce is thicker than you like, stir in a little beef broth, water, or even milk while reheating. Add a tablespoon at a time until it reaches your desired consistency. Conversely, if it's too thin, let it simmer uncovered for a few minutes to reduce.

Can you use a different cut of beef?

Yes, brisket or round steak are good alternatives. However, they may cook faster, so check for doneness earlier. The key is to use a cut with enough fat and connective tissue to become tender when slow-cooked.

How do you prevent the cheese from curdling?

Use full-fat cream cheese and cheddar, and make sure they are at room temperature before adding. Avoid cooking on HIGH for too long, as high heat can cause dairy to separate. Stir gently after shredding to combine the sauce evenly.

Recipe card

Slow-Cooker Cheddar Fajita Beef Barbacoa

Prep 15 minCook 8 hRest 10 minTotal 8 h 25 minServes 6

Ingredients

2 1/2 lb beef chuck cubes
3 bell peppers (red, yellow, orange), sliced
1 red onion, sliced
2 tbsp fresh lime juice
8 oz cream cheese, softened
2 cups shredded sharp cheddar cheese

Instructions

Place the beef chuck cubes in the bottom of a 6-quart slow cooker. Scatter the sliced bell peppers and red onion over the beef. Drizzle with the fresh lime juice.
Place the softened cream cheese in the center of the slow cooker. Sprinkle the shredded cheddar over the top.
Cover the slow cooker and cook on LOW for 8 hours, or on HIGH for 4-5 hours, until the beef is fork-tender and shreds easily. Let it rest for 3 minutes before slicing.
Remove the beef from the slow cooker and place on a cutting board. Using two forks, shred the beef into bite-sized pieces. Return the shredded beef to the slow cooker and stir to combine with the sauce. Let rest for at least 3 minutes before serving.
Serve the barbacoa over cilantro-lime rice or in warm tortillas, with extra sauce spooned on top.

Contains: milk

Estimated nutrition per serving

Calories: 680
Protein: 45 g
Carbohydrates: 10 g
Fat: 50 g

Automatic estimate from the ingredient list, not laboratory-verified.

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This recipe is based on a short cooking video and is published under the pen name Clara Weller. It was checked before publication, but errors can slip through. Nutrition, when shown, is an estimate. Read more in our editorial policy and on our food safety page.