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Char Grilled Fajita Burgers

This delicious fusion fajita burger is topped with grilled onions, peppers, manchego cheese, and homemade guacamole.
Course sandwich
Cuisine American
Servings 6
Calories 735kcal


For the Fajita Seasoning

  • 1 tablespoon chili powder
  • 1 teaspoon cumin
  • 1 teaspoon paprika
  • ½ teaspoon cayenne pepper
  • ½ teaspoon garlic powder

For the Burgers

  • 1 lb ground beef
  • 1 onion sliced into ¼" slices
  • 1 green pepper stemmed, seeded and sliced
  • 1 red pepper stemmed, seeded and sliced
  • 1 tablespoon olive oil
  • 6 slices Manchego cheese
  • ¼ cup guacamole
  • lettuce and tomato
  • 6 Brioche buns


  • Preheat one side of your grill to 400°F, leaving the other side off for indirect grilling.
  • Combine chili powder, cumin, paprika, cayenne pepper and garlic powder in a small bowl. Set aside.
  • Meanwhile, mix 2 tablespoons of fajita seasoning into the ground beef.
  • Form the ground beef into 6 patties. Make a dimple in the center of each with your thumb and season with salt and pepper.
  • Toss the onion slices and peppers in olive oil and sprinkle with salt. Arrange the veggies in a grill basket and place on the cooler side of the grill over indirect heat, tossing occasionally until veggies are charred and softened, 7-10 minutes.
  • Arrange the patties on the hot side of the grill and close the lid. Grill 4-5 minutes per side until internal temperature reaches 160°F, flipping once halfway through for even cooking.
  • Place the buns on the cool side of the grill to toast.
  • When the burgers are almost done, place a slice of Manchego cheese on each burger. Close the lid to allow the cheese to melt. Remove from grill and rest the burgers.
  • Arrange the buns with lettuce and tomato on the bottom bun. Top with a burger, a dollop of guacamole and a healthy pile of fresh grilled onions and peppers.
  • Grab an extra napkin.


Serving: 1g | Calories: 735kcal | Carbohydrates: 44g | Protein: 31g | Fat: 49g | Saturated Fat: 24g | Cholesterol: 227mg | Sodium: 630mg | Potassium: 399mg | Fiber: 2g | Sugar: 2g | Vitamin A: 2237IU | Vitamin C: 44mg | Calcium: 375mg | Iron: 3mg