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Griddle Burgers | Fajita Burgers on a Blackstone Griddle

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Tired of boring burgers? Add some spice and excitement to your next cookout! Get all the flavor of fajitas in a burger. In this easy recipe fajita seasoning is mixed into ground beef and cooked on a Blackstone griddle along with fajita veggies.

These griddle burgers are juicy, full of spices and delicious. And you can have this flat top griddle meal ready to serve in about 20 minutes, making it perfect for either a weeknight dinner or a gathering with friends.

fajita burger cooked on a blackstone griddle

Why You Will Love these Burgers

  • They are full of spicy Tex-Mex flavor.
  • Cooking them on flat top griddle makes them a caramelized outside and juicy inside.
  • You can cook everything on the griddle and even toast the buns!

Advantages of Cooking Burgers on a Griddle

I love the Blackstone griddle I got this spring and have been making all kinds of meals on it. And for me using a flat top griddle for burgers is better than using a grill.

My favorite thing about using the griddle is I can cook all kinds of toppings along with the burgers. If I want bacon cheeseburgers I can cook some bacon right beside the burgers and melt the cheese on top.

Or I can cook peppers and onions like in these fajita burgers. You can also toast the buns on the griddle, which makes them nice and crispy in just a couple minutes. Toasted buns and extra toppings take burgers from a boring to exciting!

Burger with fajita veggies

No Griddle? Make Air Fryer Burgers instead!

In addition I don’t have to worry about food falling down the grill grates and the griddle temperature is easier to control than a grill. All in all I have completely abandoned my grill this summer in favor of my Blackstone griddle!

ingredients for fajita burgers

Key Ingredients

**For exact amounts needed see the recipe card below.

Ground beef – I use 80% lean ground beef for my burgers. The fat is part of what makes the burgers juicy and flavorful and I find 80% is a good middle ground with enough fat but not too much. Some people prefer ground chuck, which is around 70% lean.

Onion – A sweet onion such as a Vidalia gives the best fajita flavor.

Peppers – Any color peppers will work for the fajita veggies. I like to use red or yellow (or both) since they are sweeter and make the burgers prettier.

Avocado – Avocado on the buns is essential for fajita burgers!

Spices – I mixed chili powder, paprika, cumin, oregano, garlic powder and onion powder together to flavor the burgers. You can also use a premade fajita spice mix if you prefer.

How to Make Fajita Griddle Burgers

1. Prep

Turn your griddle on to preheat on medium high heat. Then thinly slice the peppers and onions into long strips. Mash the avocado up and mix it with a tablespoon of salsa verde or lime juice.

sliced onions and peppers

Put the ground beef in a medium bowl and add the chili powder, paprika, cumin, oregano, garlic powder and onion powder. Knead the spices into the beef to mix them well. Separate the meat into four burgers and press them into patties.

mixing the spices into the ground beef

Tip

Tip: For the best burger texture handle the beef as little as possible. Make sure the seasoning gets distributed, but don’t over mix it.

2. Cook

Take everything outside to the griddle, including the buns. If you have multiple zones on your griddle set one on medium low for the veggies and one on medium high for the burgers. If you only have one zone just use medium for both.

raw burgers

Use a squirt bottle to add a little oil to the griddle and spread it around. Then toss the onions and peppers in the oil and let them start to soften. I like to cook the veggies for 4 minutes before adding the burgers. Toss the peppers and onions occasionally with tongs so that they cook on all sides.

peppers and onions on a griddle

After about 4 minutes add the burgers to the griddle. Let them cook for about 3 minutes per side. If you want well done burgers then cook them for 5 minutes per side.

cooking burgers and fajita veggies on a griddle

When the burgers are almost done put the buns, cut side down, on the grill. Let them toast for about 1 minutes so that they have a nice crispy interior.

3. Build the Flat Top Burger

Spread some of the avocado mixture on the bottom bun, then top it off with a burger and peppers and onions and serve.

top view of burger with veggies and tortilla chips

Tip: Make sure you clean your griddle soon after cooking. Check out the directions from Blackstone on how to care for a griddle.

How to Serve

Some other suggested toppings for these fajita burgers are:

  • Cheddar cheese
  • Cilantro
  • Tomato slices
  • Lettuce
  • Pepperjack cheese
  • Salsa

These burgers are, of course, delicious served with French fries or potato chips. You can make a more nutritious meal by adding a green salad or some fruit. Corn on the cob is another great summer side dish for burgers!

How to Store

If you have leftover fajita burgers you can store them in the refrigerator for 2-3 days. The easiest way to reheat them is to put them in an air fryer at 360 degrees F for 5 minutes.

fajita burger on plate

Variations

  • Make these with ground turkey or ground chicken for a lower fat burger that still has lots of flavor.
  • Using a jar of premade fajita spices can simplify the recipe even more.

Find More Easy Dinners

Yield: 4

Fajita Burgers on Griddle

fajita burger on plate

Get all the flavor of fajitas in a burger!

Prep Time 10 minutes
Cook Time 10 minutes
Total Time 20 minutes

Ingredients

  • 1 large sweet onion
  • 1/2 red pepper
  • 1/2 yellow pepper
  • 1 avocado
  • 1 Tablespoon lime juice or salsa verde
  • 1 pound ground beef, 80/20
  • 1 teaspoon chili powder
  • 1 teaspoon paprika
  • 1 teaspoon cumin
  • 1 teaspoon oregano
  • 2 teaspoon garlic powder
  • 1 teaspoon onion powder
  • 1/2 teaspoon salt, optional
  • 4 buns
  • 1 Tablespoon oil for griddle

Instructions

  1. Set the griddle to preheat on medium high heat.
  2. Thinly slice the peppers and onion into long strips.
  3. Mash the avocado up with a fork and mix it with either the salsa verde or lime juice.
  4. Put the ground beef in a bowl and add all spices - chili powder, paprika, cumin, oregano, garlic powder, onion powder and salt if using. Knead the spices into the beef. Separate the mixture into fourths and press it down into patties.
  5. Take the veggies, burgers, avocado mixture, buns and oil out to the griddle. If your griddle has multiple temperature zones then put one on medium low for the veggies and one on medium high for the burgers. If you only have one zone set it to medium.
  6. Squirt some oil on the griddle and spread it around. Then add the peppers and onions in the oil. Let them cook for about 4 minutes before you start the burgers. Toss them occasionally as they cook.
  7. After 4 minutes add the burgers to the griddle. For medium burgers cook the 3 minutes per side. If you prefer well done burgers cook them for 5 minutes per side.
  8. When the burgers are almost done put the buns, cut side down, on the griddle to quickly toast them. Let them toast for about 1 minute.
  9. To make the burger spread some avocado mixture on the bottom of them bun. Then add a burger patty with the fajita veggies on top.

Notes

Variations

  • Make these with ground turkey or ground chicken for a lower fat burger that still has lots of flavor.
  • Use 1 1/2 Tablespoons of premade fajita spices to flavor the meat if you prefer.

More Topping Ideas

  • Cilantro
  • Tomato slices
  • Lettuce
  • Cheese such as cheddar or pepperjack
  • Salsa


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Nutrition Information:

Yield:

4

Serving Size:

1

Amount Per Serving: Calories: 597Total Fat: 33gSaturated Fat: 9gTrans Fat: 1gUnsaturated Fat: 20gCholesterol: 101mgSodium: 398mgCarbohydrates: 39gFiber: 6gSugar: 9gProtein: 38g

Nutrition facts are estimates.

burger with the top off
collage pin for pinterst of griddle burgers
By on July 13th, 2021

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