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Slow Cooker Steak Fajitas Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.6 from 113 reviews
  • Author: Megane
  • Prep Time: 10 minutes
  • Cook Time: 4 hours
  • Total Time: 4 hours 10 minutes
  • Yield: 4 servings
  • Category: Main Course
  • Method: Slow Cooking
  • Cuisine: Tex-Mex

Description

This Slow Cooker Steak Fajitas recipe offers a flavorful and easy way to enjoy tender flank steak cooked with colorful bell peppers, onions, and zesty seasonings. Perfect for a hassle-free meal, the slow cooker infuses the steak with spices and juicy vegetables, making it ideal for serving on warm tortillas with your favorite toppings for a delicious Tex-Mex dinner.


Ingredients

Scale

Vegetables

  • 1 yellow onion, sliced
  • 1 red bell pepper, sliced
  • 1 yellow bell pepper, sliced
  • 1 green bell pepper, sliced

Meat & Seasonings

  • 1 ½ pounds flank steak
  • 1 teaspoon chili powder
  • 1 teaspoon cumin
  • 1 teaspoon paprika
  • ½ teaspoon salt
  • ½ teaspoon oregano
  • 1 teaspoon black pepper

Additional Ingredients

  • 10.5 ounces diced tomatoes with green chilies, drained
  • ¼ cup chipotle peppers in adobo sauce, chopped (optional, omit if no spice desired)
  • 3 teaspoons garlic, minced
  • 2 limes, juiced


Instructions

  1. Prepare Vegetables: Add the sliced yellow onion and all three bell peppers (red, yellow, green) to the bottom of a 6-quart slow cooker to create a flavorful base for the steak.
  2. Season the Steak: Place the 1½ pounds of flank steak on top of the vegetables. Sprinkle evenly with chili powder, cumin, paprika, salt, oregano, and black pepper to fully season the meat.
  3. Add Flavorings: Top the seasoned steak with drained diced tomatoes with green chilies, chopped chipotle peppers in adobo sauce (if using), minced garlic, and freshly squeezed lime juice to infuse vibrant flavors.
  4. Slow Cook: Cover the slow cooker and cook on low for 7-8 hours or on high for 3-4 hours until the steak becomes tender and flavors meld together.
  5. Slice the Steak: Remove the steak from the slow cooker and allow it to rest for a few minutes. Then, slice the flank steak thinly against the grain to ensure tenderness and ease of chewing.
  6. Combine and Serve: Return the sliced steak to the slow cooker and stir it into the juices and vegetables. Serve hot on tortillas with your favorite fajita toppings and enjoy a delicious, home-cooked meal.

Notes

  • Allow the flank steak to rest a few minutes after cooking for juicier, more tender meat as the juices redistribute evenly throughout.
  • Slice the steak perpendicularly across the grain (visible muscle fibers) to reduce chewiness and enhance tenderness.
  • Cut the flank steak into thin strips less than an inch thick for easier chewing and better texture in fajitas.

Nutrition

  • Serving Size: 1 serving (approx. 1/4 of recipe)
  • Calories: 320 kcal
  • Sugar: 6 g
  • Sodium: 480 mg
  • Fat: 15 g
  • Saturated Fat: 5 g
  • Unsaturated Fat: 8 g
  • Trans Fat: 0.2 g
  • Carbohydrates: 12 g
  • Fiber: 3 g
  • Protein: 32 g
  • Cholesterol: 85 mg