This Keto Steak Salad is the perfect hearty and low carb lunch or light dinner. It's easy to make and has all the amazing flavors of a fajita served with a creamy cilantro lime dressing!
In a medium bowl, combine 2 tablespoons of olive oil, chopped cilantro, lime juice, mustard and 5 teaspoons of the fajita seasonings. Reserve 1 tablespoon of the steak marinade for drizzling on the steak at the end. Pour remainder of the steak marinade into a large zip-top bag along with the steak. Press the bag to evenly distribute the marinade and allow to sit while you prepare the vegetables.
Heat 1 tablespoon olive oil in a 12" skillet over medium high heat. Add the onions and allow to cook for about 4 minutes, or until softened and fragrant. Add the bell peppers and sprinkle with the reserved 1 1/2 teaspoons of fajita seasonings. Cook for 2-3 minutes. Transfer and set aside on a plate.
Melt ghee on the same skillet and sear the steak. Allow to sear for 3 to 4 minutes (or more depending on how done you like your steak) on each side. Transfer steak to a cutting board and allow to rest for at least 5 minutes before slicing into thin strips. Add the reserved steak marinade to the skillet and add the steak strips until just heated. Remove from heat.
For the dressing: Combine all the dressing ingredients in a blender or food processor. Blend until smooth. Chill until ready to serve. Can be made a few days in advance.
Place 2-3 pieces each of butter and romaine lettuce in a large bowl. Place sliced avocado and grilled peppers and onions on top. Add the flank steak strips and place on top of the salad. Drizzle with chilled dressing. Serve immediately.