Slow Cooker Fajita Skirt Steak with Monterey Jack Tips, FAQ & printable recipe

Tips for success

For the most tender skirt steak, always slice against the grain. This shortens the muscle fibers, making each bite easier to chew.

If the steak is very long, cut it into smaller portions before slicing. Also, trim any excess fat, but leave a little for flavor. The slow cooker will render it down, adding richness to the sauce.

To enhance the flavor, consider searing the steak strips in a hot skillet before adding them to the slow cooker. While the video shows raw meat going in, searing adds a deep, caramelized crust that can elevate the dish.

However, this extra step is optional and not necessary for the dump-and-go method. If you do sear, deglaze the pan with a splash of water or broth and add that liquid to the pot.

Variations

• Chicken Fajitas: Swap the skirt steak for 2 pounds of boneless, skinless chicken thighs. Cook on low for 4 to 5 hours, until the chicken shreds easily. The creamy sauce works just as well with poultry.
• Spicy Kick: Add 1 to 2 minced jalapeños or a teaspoon of chipotle powder to the vegetable layer. Use pepper jack cheese instead of Monterey Jack for extra heat. Serve with pickled jalapeños on the side.
• Veggie-Packed: Add sliced mushrooms and zucchini along with the bell peppers. The vegetables will soften and absorb the creamy sauce. Increase the cheese slightly to keep the sauce thick.
• Taco Night: Instead of tortillas, serve the fajita filling in hard taco shells. Top with shredded lettuce, diced tomatoes, and a drizzle of crema. This turns the slow cooker meal into a fun, hands-on dinner.

Storage and make-ahead

Fridge

Store leftover fajita filling in an airtight container in the refrigerator for up to 4 days. Reheat gently, adding a splash of water if needed.

Freezer

Freeze the cooked fajita filling in a freezer-safe container for up to 3 months. Thaw overnight in the refrigerator before reheating.

Reheat

Reheat in a skillet over medium heat, stirring occasionally, until hot and bubbly. Add a splash of broth or water to loosen the sauce if necessary.

Store leftover fajita filling 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. Reheat gently in the microwave or on the stovetop, adding a splash of water or broth if the sauce has thickened. Warm tortillas separately before serving.

This dish is perfect for meal prep. Assemble all the ingredients in the slow cooker insert the night before, cover, and refrigerate. In the morning, place the insert in the slow cooker base and cook on low as directed.

You may need to add 30 minutes to the cooking time if starting from cold. Alternatively, cook the full batch and refrigerate for up to 4 days.

Serving ideas

Serve the fajita filling in warm flour tortillas, letting everyone build their own. Set out small bowls of diced avocado, fresh cilantro, lime wedges, and salsa so guests can customize their tacos.

The creamy, beefy filling pairs beautifully with a crisp slaw or a simple green salad. For a heartier meal, serve with Mexican rice and refried beans on the side.

This dish also works well as a topping for nachos or a filling for quesadillas. The creamy sauce clings to chips or tortillas, making every bite satisfying. For a low-carb option, serve the filling over cauliflower rice or in lettuce cups. The flavors are bold enough to stand alone, so any serving style works.

Frequently asked questions

Recipe card

Slow Cooker Fajita Skirt Steak with Monterey Jack

Prep 15 minCook 6 hTotal 6 h 15 minServes 6

Ingredients

• 2 lb skirt steak, sliced into strips
• 3 bell peppers (red, yellow, orange), sliced
• 1 medium red onion, sliced
• 2 tbsp fresh lime juice
• 1/2 cup sour cream
• 2 cups shredded Monterey Jack cheese
• 8 warm flour tortillas

Instructions

1. Place the sliced skirt steak strips into the bottom of the slow cooker. Scatter the sliced bell peppers and red onion over the meat. Drizzle with fresh lime juice.
2. Dollop the sour cream over the top of the meat and vegetables. Sprinkle the shredded Monterey Jack cheese evenly over everything.
3. Cover the slow cooker and cook on low for 6 to 8 hours, until the steak is fork-tender and the peppers are soft. Stir gently before serving. Let it rest for 3 minutes before slicing.
4. Warm the flour tortillas according to package directions. Spoon the steak and pepper mixture into the tortillas and serve immediately.

Contains: gluten, milk

Estimated nutrition per serving

Calories

480

Protein

35 g

Carbohydrates

28 g

Fat

26 g

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