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Slow Cooker Steak Fajitas Recipe Easy 5-Ingredient Dinner Idea

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Tender, flavorful steak fajitas made effortlessly in a slow cooker using just five simple ingredients. Perfect for busy weeknights or casual gatherings with a delicious Tex-Mex flair.

Ingredients

Scale
  • 1.5 to 2 lbs flank steak or skirt steak
  • 3 medium bell peppers (red, yellow, green), sliced into thin strips
  • 1 large yellow or white onion, sliced thinly
  • 2 tablespoons fajita seasoning (store-bought or homemade blend of chili powder, cumin, paprika, garlic powder, onion powder, salt, and pepper)
  • 1/2 cup beef broth (120 ml)

Instructions

  1. Slice the flank steak against the grain into thin strips about 1/2 inch wide.
  2. Slice the bell peppers into thin strips and the onion into thin wedges or strips.
  3. Place the sliced steak at the bottom of the slow cooker.
  4. Sprinkle the fajita seasoning evenly over the steak.
  5. Add the sliced peppers and onions on top in an even layer.
  6. Pour 1/2 cup beef broth over the ingredients.
  7. Cover and cook on low for 4-6 hours until the steak is tender and vegetables are softened but not mushy.
  8. About 30 minutes before serving, stir gently and adjust salt or pepper if needed.
  9. If the liquid is too watery, cook uncovered on high for 10-15 minutes to thicken slightly.
  10. Serve warm with tortillas and your favorite toppings like sour cream, guacamole, shredded cheese, and lime wedges.

Notes

Chill the steak in the freezer for 15 minutes before slicing to make thin slicing easier and safer. Avoid stirring too often during cooking to develop better flavor layers. For a crunchier pepper texture, add peppers halfway through cooking. Let the fajitas rest covered for 5 minutes before serving to redistribute juices. Use a slow cooker liner for easier cleanup.

Nutrition

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