Go Back
+ servings
Tri-Tip Fajita and fork on a plate with cilantro sprig beer and condiments in background

Tri-Tip Fajitas

Easy beef tri-tip fajitas made from leftover tri-tip roast. A quick, flavorful marinade moistens the sautéed onions, bell peppers and shredded beef then stuffed into warm flour tortillas.
5 from 3 votes
Print Pin Save
Prep Time: 10 minutes
Cook Time: 10 minutes
Total Time: 20 minutes
Servings: 4 Servings
Calories: 529kcal
Author: Pat Nyswonger

Ingredients

Marinade:

  • ¼ cup vegetable oil
  • ½ cup freshly squeezed lime juice
  • 2-3 garlic cloves grated or minced
  • ½ red jalepeno pepper seeded and minced
  • 3 tablespoons chopped fresh cilantro
  • 1 teaspoon ground cumin powder
  • ½ teaspoon salt
  • ¼ teaspoon black pepper
  • 1 teaspoon brown sugar

For the Fajita Filling:

  • 8 ounces shredded slow cooker tri-tip roast *see notes
  • 2 tablespoons vegetable oil
  • 1 medium yellow onion sliced
  • ½ medium red onion sliced
  • 3 large bell peppers red, yellow and green
  • 4 10- inch flour tortillas
  • Lime wedges salsa and sour cream

Instructions

For the Marinade:

  • Add all the marinade ingredients to a jar, put the lid on and shake to combine.  Set aside.

For the Fajita Filling:

  • Add the shredded tri-tip to a skillet set over medium-low heat.  Drizzle 1/2 to 3/4 cup of the marinade over the beef to moisten, toss to combine and reheat, about 5 minutes.  Remove from the heat, cover the skillet and keep warm while preparing the fajitas.
  • Heat the oil in a large skillet set over medium-high; then add the onions and bell peppers.  Sprinkle with 3 tablespoons of the reserved marinade and cook until the onions and peppers are lightly cooked (al dente) and slightly crisp.  Remove from the heat.

To Assemble:

  • Alternate tortillas with dry paper towels on a plate and cover with a damp paper towel.  Microwave on high for 1 minute.
  • Add fajita vegetables and shredded beef to each tortilla and serve with lime wedges, salsa and sour cream.

Notes

Use leftover tri tip from one of the following recipes:

Nutrition

Serving: 1 | Calories: 529kcal | Carbohydrates: 43g | Protein: 21g | Fat: 31g | Saturated Fat: 3g | Polyunsaturated Fat: 21g | Trans Fat: 1g | Cholesterol: 49mg | Sodium: 599mg | Fiber: 4g | Sugar: 6g