Big Mac smash tacos loaded with melted cheddar, shredded lettuce, and Big Mac sauce, cooked in cast iron on a Camp Chef Everest outdoors

Big Mac Smash Tacos

Introduction

Smash tacos are exactly what they sound like: ground beef pressed thin on a hot griddle, crisped up on the flat top, then loaded with toppings and folded into a tortilla. This version takes the concept somewhere better. Homemade Big Mac sauce, sharp cheddar, dill pickles, and shredded iceberg on six tacos that come together in under 30 minutes. Your flat top does all the work.

What makes smash tacos different

Regular tacos start with meat that's been cooked separately. Smash tacos skip that step entirely. You press raw ground beef directly onto the tortilla wrap, cook it meat-side down on a screaming-hot griddle until it's browned and slightly crispy, then flip it. The beef and tortilla become one piece, which means every bite has both in the right ratio.

The flat top is what makes this work. Even, consistent heat across the entire surface means you can cook all six at once without crowding a pan or losing temperature. Cast iron over a live fire works too, which is how this recipe was tested.

The sauce is the whole point

Big Mac sauce is a simple mix: mayo, ketchup, mustard, white vinegar, sugar, diced onion, dill pickle relish, and a few spices. It takes two minutes to make and it keeps in the fridge for a week. Make it first so the flavors have a few minutes to come together while the griddle heats up.

This sauce is what separates a good smash taco from a great one. Don't skip it in favor of store-bought Thousand Island — the mustard-to-ketchup ratio here is more balanced, and the diced onion adds texture you won't get from the bottled stuff.

How to make them



Recipe Created by: Carlin Frimmel

What you need

For the Big Mac sauce:

  • 1/2 cup mayonnaise
  • 2 Tbsp ketchup
  • 2 tsp mustard
  • 1 tsp white vinegar
  • 1 tsp granulated sugar
  • 1 Tbsp diced white onion
  • 2 Tbsp diced dill pickles or relish
  • 1/2 tsp paprika
  • 1/4 tsp garlic powder
  • 1/4 tsp onion powder
  • 1/4 tsp salt

For the tacos (makes 6):

  • 6 small tortilla wraps
  • ~500g lean ground beef
  • 6 cheddar cheese slices
  • 2 dill pickles, sliced (four or five slices per taco)
  • 1/4 cup diced white onion (about one teaspoon per taco)
  • 1 cup shredded iceberg lettuce

Steps

  1. Make the sauce. Add all sauce ingredients to a bowl and stir well. Set aside.
  2. Heat your flat top or cast iron pan over medium-high heat. You want the surface hot enough that the beef sizzles immediately on contact.
  3. Press roughly 1/2 cup of ground beef directly onto each tortilla wrap, spreading it thin and flat to cover the surface evenly.
  4. Cook meat-side down until well browned, about three to four minutes. Don't move them. You want a proper crust to develop.
  5. Flip each taco. Add a slice of cheddar to each one, then cover briefly to let the cheese melt.
  6. Remove from the griddle. Top each with pickles, diced onion, shredded iceberg lettuce, and a generous spoonful of Big Mac sauce. Fold and serve immediately.

A few tips before you start

Use lean beef. Fattier ground beef will pool grease under the tortilla while it cooks. Lean (90/10 or leaner) keeps the tortilla from getting soggy and gives you a cleaner crust.

Get the pan hot. This is not a low-and-slow cook. High heat is what crisps the beef and gives you that smash burger-style sear. If the beef isn't sizzling the moment it hits the surface, wait longer.

Press firmly and evenly. The beef needs to cover the tortilla in a consistent, thin layer. Uneven spots mean some areas cook faster than others and you lose that uniform crust.

Work in batches if needed. On a smaller flat top, cook three at a time. The goal is direct contact with the hot surface — don't stack or crowd them.

What to cook these on

These tacos were made on an Everest Stove in cast iron, but a Camp Chef flat top is the easier call at home or at camp. The full cooking surface means you can run all six at once and serve them together instead of in waves. If you're cooking outdoors, the pellet grill works too with a cast iron skillet set on the grates.

Make them your own

The Big Mac angle is the move here, but the base recipe is flexible. Swap cheddar for pepper jack, add sliced jalapeños, or use chipotle mayo instead of Big Mac sauce if you want to take it in a different direction. The smash taco method stays the same — the toppings are up to you.

Conclusion

These smash tacos are a flat top recipe that actually earns the hype. The crispy beef, the melted cheddar, the cold crunch of iceberg, and that sauce all come together in something that's hard to stop eating. Make the sauce ahead, heat up the griddle, and have dinner ready in less than 30 minutes.