Tender steak, colorful bell peppers, and caramelized onions are roasted together on one pan for an easy weeknight dinner with almost no cleanup. Perfect for busy families, meal prep, or Taco Tuesday!

Serves: 4–6
Prep Time: 15 minutes
Cook Time: 18–22 minutes

Ingredients

• 1½ lbs flank steak or sirloin, sliced into thin strips against the grain
• 3 bell peppers (red, yellow, and green), sliced
• 1 large yellow onion, sliced
• 2 tablespoons olive oil

Seasoning

• 2 teaspoons chili powder
• 1 teaspoon smoked paprika
• 1 teaspoon cumin
• 1 teaspoon garlic powder
• ½ teaspoon onion powder
• ½ teaspoon oregano
• ½ teaspoon salt
• ¼ teaspoon black pepper
• Pinch of cayenne (optional)

For Serving

• Warm flour or corn tortillas
• Fresh lime wedges
• Cilantro (optional)
• Sour cream
• Guacamole or sliced avocado
• Shredded Monterey Jack or cheddar cheese
• Pico de gallo or salsa

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Instructions

1. Preheat

Preheat oven to 425°F. Line a large sheet pan with parchment paper or lightly grease it.

2. Season

In a large bowl, combine the sliced steak, peppers, and onion.

Drizzle with olive oil and sprinkle on all of the seasonings. Toss until everything is evenly coated.

3. Arrange

Spread everything into a single layer on the sheet pan. Avoid overcrowding so the vegetables roast instead of steam.

4. Bake

Bake for 15 minutes, then stir everything.

Return to the oven for 3–7 more minutes, or until the steak is just cooked through and the vegetables are tender with lightly browned edges.

For extra caramelization, broil for 1–2 minutes at the end.

5. Serve

Squeeze fresh lime juice over the fajitas before serving.

Pile into warm tortillas and top with your favorite toppings.

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Texas Girl Tip ❤️

For the most tender steak, slice it very thin against the grain while it’s still slightly firm from the refrigerator. It makes a huge difference in texture.

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Optional Flavor Boost

If you have an extra 30 minutes, toss the steak with:

• 1 tablespoon lime juice
• 1 tablespoon Worcestershire sauce
• 1 teaspoon olive oil

before adding the seasonings. It’s completely optional, but it adds even more flavor.