The Ultimate Fajita Burger in honor of #burgerweek

The Ultimate Fajita Burger is the incredible combination of a Mexican fajita with the classic cheese burger! Filled with creamy cheese, sweet bell peppers, salsa, guacamole, and more, you won’t believe how tasty this burger recipe is!

My Veggie and Lentil Burgers and Sweet Potato and Black Bean Burgers are two more burger recipes that feed you a hamburger in a less traditional way. All three recipes add some more vegetables and flavors, as well as providing meatless options too!

a fajita burger with words

Homemade Grilled Fajita Burger Recipe

Few things are more delicious in the summer than a perfectly grilled burger. My friends over at NoshOn.It are hosting a whole week of burger recipes from all of your favorite bloggers. #BurgerWeek is going to be epic! I was so excited when they asked me to participate.

I decided to put a fun Tex-Mex twist on a traditional burger because I love all things Mexican food. The Ultimate Fajita Burger is all the glory of a cheese burger with my favorite fajita elements. A little spice, some sweet bell peppers, and guacamole make for one killer burger. Everything is better with guacamole!

You can see the other blogger’s who are posting today at the bottom of the post, but be sure to check back because this is a whole week of fun. You can click on the burger badge and it will take you to a completed list of everyone who participates this week. That will be one amazing compilation in the end.

a burger with melted cheese, peppers, and guacamole

How can I make this burger a little spicier?

If you like a little spice try adding a chopped jalapeno to the pepper mixture before cooking it. Yum! You can also use a spicy salsa in the recipe to add some kick.

How do I keep burgers from falling apart?

Sometimes the burger meat can crumble or fall apart when you grill it which isn’t fun! To keep your burgers together, keep the patties you make cold until it is time to cook them. If they don’t seem to stay together you can also mix in an egg.

How can I store homemade burgers?

An awesome way to make burgers ahead of time is to freeze them after you form them into patties! You can store them in a single layer in an airtight bag and freeze for up to 3 months. Then you can make burgers any time and you just have to grill them!


The Ultimate Fajita Burger in honor of #burgerweek

  • Author: Melissa Griffiths - Bless This Mess
  • Prep Time: 15 min
  • Cook Time: 10 min
  • Total Time: 25 min
  • Yield: Serves 6 1x


The Ultimate Fajita Burger is the incredible combination of a Mexican fajita with the classic cheese burger! Filled with creamy cheese, sweet bell peppers, salsa, guacamole, and more, you won’t believe how tasty this burger recipe is!



For the burgers:

  • 2 pounds ground beef
  • 1/4 cup salsa
  • 1 teaspoon cumin
  • 1 teaspoon chili powder
  • 1 teaspoon salt
  • 1/2 teaspoon pepper

For fajita bell pepper topping:

  • 1 orange bell pepper, sliced
  • 1 red bell pepper, sliced
  • 1/2 cup thinly sliced red onions
  • 1/4 cup salsa

For the sandwiches:

  • 6 burger buns, toasted for bonus points
  • sliced Cabot Chiptole Cheddar or Seriously Sharp Cheddar
  • Guacamole (1 avocado smashed with a fork with garlic powder and salt added to taste)
  • thick sliced garden tomatoes


  1. For the burgers:
  2. Mix all of the burger ingredients together in a medium bowl and press into 6 patties. Grill over medium-high heat for 5-10 minutes on each side until the meat is cooked through and the center registers 160 degrees on an instant read thermometer. If you’d like the cheese melted, add it to the top of the burgers 1 minute before they are cooked through.
  3. For the fajita bell pepper topping:
  4. Saute the sliced peppers and onion in the salsa over medium heat until the peppers are cooked through and soft, about 6 minutes.
  5. To assemble the burgers put guacamole on the bun top and bottom like you would mayo, add the sliced tomato, burger, cheese if you didn’t melt it, and 1/6 of the pepper mixture. Top with the bun. Repeat with remaining ingredient. Enjoy while the peppers and burgers are hot.

  • Category: Dinner
  • Method: Grill
  • Cuisine: American
Nutrition Information: YIELD: 6 SERVING SIZE: 1 burger
Amount Per Serving: Calories: 444 Fat: 16.5g Cholesterol: 109.2mg Sodium: 968.8mg Carbohydrates: 29.3g Sugars: 8.3g Protein: 43.4g Vitamin A: 167µg Vitamin C: 78.8mg

Keywords: fajita burger recipe, how to make a fajita burger, best fajita burger, homemade burger recipe, how to make the best hamburger, easy burger recipe, best grill recipes

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This post was originally published in 2014 and has been updated in August 2019.

The Ultimate Grilled Fajita Burger is filled with cheese, guac, peppers, and more to create a flavorful and fun way to eat a burger!


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amy hines

We are trying this! Thanks!


Absolutely amazing. Everything I love, all in a bun! 🙂

Mallory @forkvsspoon

Gosh, I would do anything for guac and those fajita veggies! Great burger!


Yummy! Love fajitas and a burger with those flavours just has to be good.


What an awesome burger idea, love this!!


Whoaaaaaa. I would LOVE that burger, I’m sure of it.

You’ve done it! I would *love* that burger. Anything with guac on it has my heart. Looks fantastic, Melissa!


This is genius and I need to make it STAT! I’m loving this #burgerweek!!!


Fajita veggies and guacamole sounds like a heavenly combo for a burger!!


That looks my friend!

Bless This Mess - About Me

I’m Melissa, and I want to help you feed your family wholesome food.

As a hobby farmer and mom of five, I’m all about keeping it simple in the kitchen. I want healthy meals that feed my family well, and then I want to get back to my (messy) life. Let’s work together to find something yummy for your dinner table.