Cooked steak strips with bell peppers, onions and mushrooms on an aluminum sheet pan garnished with fresh tomatoes, avocados and cilantro, drizzled with sour cream

Sheet Pan Steak Fajitas

Ready in just 10 minutes, these Sheet Pan Steak Fajitas are incredibly easy to make and bursting with so much flavor, they're guaranteed to have the whole family sitting at the table before you can even say "dinner is ready". And when a dish is this good, why even bother letting them know that it's actually good FOR them?
Course Main Course
Cuisine Mexican
Prep Time 5 minutes
Cook Time 5 minutes
Total Time 10 minutes
Servings 6
Calories 360kcal
Author Sonia! The Healthy Foodie


  • 1.65 lb sirloin steak, sliced into ½-inch thick strips*
  • 1 of each red, yellow and orange bell peppers sliced
  • 1 medium onion cut in half and sliced lenghtwise
  • 1 pint button mushrooms sliced
  • 3 tbsp chopped fresh cilantro
  • 3 tbsp avocado oil
  • 1 tsp fresh lemon juice



  • flour tortillas
  • sour cream
  • diced tomatoes
  • diced avocado
  • lime or lemon wedges
  • chopped cilantro


  • Set your oven to broil and place a rack in the upper top position.
  • In a large mixing bowl, combine the beef strips, bell peppers, onions, mushrooms, chopped cilantro, avocado oil and lemon juice.
  • Combine all the ingredients for the spice mix in a small bowl, mix together with a fork and add to reserved meat and veggies; toss well, until evenly combined and coated
  • Spread into an even layer onto a 18" x 26" baking sheet and place directly under the broiler (as in almost touching) for 4 to 5 minutes, checking regularly to make sure nothing burns, although a little bit of surface charring is desirable.
  • Remove from the oven, toss gently and garnish with lemon or lime wedges, diced tomatoes, diced avocado, chopped cilantro and sour cream, if desired.
  • Serve with flour tortillas and additional sour cream, diced tomatoes, diced avocadoes and lemon, if desired.


*It's a lot easier to slice the beef if you place it in the freezer prior to slicing until it's nice and firm but not frozen solid; about 20 to 30 minutes should do the trick.
*If you want to warm up your flour tortillas, wrap them aluminum foil and place them in the oven, on the middle rack, while the meat and veggies are broiling.


Calories: 360kcal | Carbohydrates: 22g | Protein: 33g | Fat: 15g | Saturated Fat: 3g | Cholesterol: 76mg | Sodium: 693mg | Potassium: 819mg | Fiber: 2g | Sugar: 3g | Vitamin A: 585IU | Vitamin C: 4.3mg | Calcium: 85mg | Iron: 4.5mg