Steak Fajita Foil Packets

Quick and tasty and if you don’t feel like making your own taco seasoning, you can use store bought! The ingredients can be easily prepped before you depart, tossed together and thrown on the grill for an easy dinner!


  • 2 pounds sirloin steak, sliced into thin strips
  • 3 tablespoons taco seasoning, divided (one package of taco seasoning is about 3 tablespoons)
  • 1 tablespoons vegetable or olive oil
  • 3 one each of a red, yellow, and greed bell pepper, sliced thin strips
  • 1 medium onion, sliced
  • 1 lime, juiced
  • optional toppings: tortilla shells, shredded cheese, guacamole, salsa, sour cream, etc.

Homemade Taco Seasoning:

  • 1 tablespoon chili powder
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon onion powder or use 1 tablespoon minced onion flakes
  • 1/4 teaspoon crushed red pepper flakes (increase or reduce for heat)
  • 1/4 teaspoon dried oregano
  • 1/2 teaspoon paprika
  • 1 1/2 teaspoons ground cumin
  • 1 teaspoon sea salt
  • 1 teaspoon black pepper
  • 3/4 cup water


Heavy duty tin foil

Non-stick spray

2 medium bowls

Measuring spoons


  1. Get your fire going, you’ll need a grill overtop to set the packs on.
  2. Cut six 12 to18 inch strips of heavy-duty aluminum foil. Pray the foil (where you’ll put your ingredients) with non-stick spray
  3. In one of the bowls add the steak strips and season with 2 tbsp of taco seasoning and the juice of one lime. Mix until evenly coated. Divide the meat equally between your prepared foil strips. Place everything in the center.
  4. In the second bowl add the veggies and remaining seasoning with one tbsp of oil toss to coat and divide evenly between the foil with the steak.
  5. To fold up the packets, bring the long sides of the foil together over the beef and veggies. Fold the ends together at least twice to create a strong seal. Roll up the shorter ends of the foil tightly to create a sealed packet.
  6. Place the steak packets on the grill and cover if using a BBQ. Cool for 8-10 minutes or until the steak is cooked to your preferred doneness. Rotate the packets halfway through to ensure even cooking.
  7. Remove packets from the grill and serve with warm tortillas and preferred topping.


Steak Doneness:

Rare: 120-130F, Red in center

Medium-Rare: 130-135F, Pink in center

Medium: 135-145F, Some pink in center

Well: 145-155F, Some very light pink

Well done: 155-165F, Mostly brown throughout

Oh my god you monster: 165F +, Brown throughout

(Adapted from

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