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5-Ingredient Slow Cooker Steak Fajitas

A delicious and easy meal that the whole family will love, these fajitas are flavorful, hearty, and super simple to whip up in a slow cooker.
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Prep Time 15 minutes
Cook Time 6 hours
Total Time 6 hours 15 minutes
Servings: 6 servings
Course: Dinner, Main Course
Cuisine: Mexican
Calories: 300
Ingredients Method Notes

Ingredients
  

Main Ingredients
  • 1.5 to 2 pounds flank steak, thinly sliced against the grain
  • 3 large bell peppers (mixed colors), cored and thinly sliced
  • 1 large yellow onion, thinly sliced
  • 1 ounce packet fajita or taco seasoning mix
  • 1/3 cup lime juice (fresh or bottled)

Method
 

Preparation
  1. Slice the flank steak thinly against the grain into strips about 1/4 inch thick.
  2. Place the sliced bell peppers and onion in the bottom of a slow cooker, spreading them into an even layer.
  3. In a bowl, whisk together the fajita seasoning mix and lime juice.
  4. Add the sliced flank steak to the bowl and toss well until every strip is evenly coated.
  5. Spread the seasoned steak strips over the bell peppers and onions in the slow cooker.
Cooking
  1. Cover and cook on LOW for 5 to 6 hours, or on HIGH for 2.5 to 3 hours, until the steak is tender and the vegetables are soft.
  2. Adjust seasoning if needed, then serve with warm tortillas or over rice or salad greens.

Notes

Store leftovers in an airtight container in the refrigerator for about 3 to 4 days. For longer storage, freeze the cooked fajitas in an airtight freezer bag for up to 3 months. Thaw in the fridge and reheat on the stove or microwave.