Slowcooker Fajitas

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  • Prep Time: 15
  • Total Time: 15


No fuss fajita recipe with tender steak strips and easy veggies, where everything is tossed in the slowcooker.



2 pound flank steak

2 large bell peppers, or 3 small/med (use red, yellow, or orange)

1 large onion (red, white or yellow)

1/4 cup fresh lime juice (about 3 large limes), plus extra for serving

1 tablespoon soy sauce

2 teaspoons liquid smoke

1 tablespoon white vinegar

1 tablespoon chili powder

1 tablespoon cumin

45 cloves minced garlic (pre-minced garlic works great!)

2 teaspoons kosher salt

1/2 teaspoon black pepper

Optional: extra lime and a handful of chopped cilantro


1 cup sour cream

2 tablespoons lime juice (zest a little lime in the sour cream before juicing!)

1 teaspoon chili powder

kosher salt to taste


Cut flank steak against the grain into about 1/2-inch slices. Then slice the opposite direction so you have 2-3-inch strips of meat. Place in slow cooker. Cut peppers and onions into large 1-inch strips and place on top of meat (see note below).

In a small bowl, combine 1/4 cup lime juice, soy sauce, liquid smoke, vinegar, chili powder, cumin, garlic, salt, and pepper. Whisk to combine and then pour over meat and veggies and toss to coat. Place lid on cooker and cook 4-6 hours on high, or 7-8 hours on low.

While meat is cooking, whisk together sauce ingredients and store in fridge till serving.

When meat is done, optionally squeeze a little more lime on top and toss in a handful of chopped cilantro.

Serve on tortillas of choice, with any additional toppings (ie: avocado, pico de gallo, etc.)


Tender vegetables like onions and peppers get very soft when cooked this long in a slow cooker. I personally like it that way, but if you prefer more bite to your veggies, simply toss them in about half-way during cooking time.


  • Serving Size: 6