Craving the bold and vibrant flavors of Tex-Mex cuisine but short on time? Look no further than these Slow Cooker Steak Fajitas. With tender strips of seasoned steak, colorful bell peppers, and onions, these fajitas are bursting with flavor and couldn’t be easier to make. Simply toss everything into the slow cooker and let it work its magic while you go about your day. Whether you’re serving a crowd or just feeding your family, these Slow Cooker Steak Fajitas are sure to be a hit. Let’s dive into the recipe and discover how to make this delicious Tex-Mex dish.



  • 2 pounds flank steak, thinly sliced against the grain
  • 3 bell peppers (any color), sliced
  • 1 large onion, sliced
  • 3 cloves garlic, minced
  • 1 tablespoon chili powder
  • 1 teaspoon ground cumin
  • 1 teaspoon smoked paprika
  • 1/2 teaspoon dried oregano
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • Juice of 1 lime
  • 2 tablespoons vegetable oil
  • Flour or corn tortillas, for serving
  • Optional toppings: shredded cheese, sour cream, salsa, guacamole, chopped cilantro, lime wedges



  1. In a small bowl, combine the chili powder, ground cumin, smoked paprika, dried oregano, salt, and black pepper to make the fajita seasoning.
  2. Place the thinly sliced flank steak in the slow cooker. Add the sliced bell peppers, sliced onion, minced garlic, lime juice, vegetable oil, and fajita seasoning to the slow cooker. Toss everything together until the steak and vegetables are evenly coated with the seasoning.
  3. Cover the slow cooker and cook on low heat for 6-8 hours or on high heat for 3-4 hours, until the steak is tender and cooked through.
  4. Once the steak and vegetables are cooked, use a slotted spoon to transfer them to a serving dish, leaving behind any excess liquid in the slow cooker.
  5. Warm the flour or corn tortillas in a dry skillet or in the microwave until heated through.
  6. Serve the Slow Cooker Steak Fajitas with warm tortillas and your choice of toppings, such as shredded cheese, sour cream, salsa, guacamole, chopped cilantro, and lime wedges.
  7. Allow everyone to assemble their own fajitas by filling the tortillas with the cooked steak and vegetables, along with their favorite toppings.


Tips for Success:

  • For best results, thinly slice the flank steak against the grain to ensure tenderness.
  • Feel free to customize the fajita seasoning to your taste by adjusting the amounts of spices or adding additional seasonings such as garlic powder, onion powder, or crushed red pepper flakes.
  • If you prefer, you can sear the steak in a hot skillet before adding it to the slow cooker for extra flavor and color.
  • Don’t overcrowd the slow cooker to ensure even cooking of the steak and vegetables. If needed, you can cook the fajitas in batches or use a larger slow cooker.
  • Leftover steak fajita filling can be stored in an airtight container in the refrigerator for up to 3 days. Reheat it in a skillet or in the microwave before serving.



  • Chicken Fajitas: Substitute thinly sliced chicken breast or thighs for the flank steak for a lighter option.
  • Vegetarian Fajitas: Omit the steak and add extra bell peppers, onions, and your favorite vegetables such as zucchini, mushrooms, or squash.
  • Shrimp Fajitas: Use peeled and deveined shrimp instead of steak for a seafood twist on classic fajitas.


Slow Cooker Steak Fajitas are a convenient and delicious way to enjoy the flavors of Tex-Mex cuisine without a lot of fuss. With minimal prep work and hands-off cooking in the slow cooker, you can have a flavorful and satisfying meal ready to enjoy with family and friends. Whether you’re hosting a casual dinner or simply craving a taste of Southwestern flavor, these Slow Cooker Steak Fajitas are sure to be a hit. So fire up your slow cooker, gather your ingredients, and get ready to savor the deliciousness of homemade fajitas with minimal effort.

Leave a Reply

Your email address will not be published. Required fields are marked *

Decadent Tiramisu Cheesecake: A Heavenly Fusion of Two Classics

Italian Hoagie Sandwich