Prepare the ingredients by chopping and measuring all toppings.
Form the beef into 4 equal balls, about 4 ounces each.
Heat a large skillet over medium-high heat and add a little oil.
Place the beef balls on the skillet and press down with a spatula to flatten.
Season the patties with salt and pepper and cook for about 3-4 minutes.
Flip the patties, top with cheese, and cook for an additional 2 minutes.
Warm tortillas in a separate skillet or microwave.
Assemble by placing the burger patties in tortillas and adding toppings.
Serve immediately and enjoy your smash burger tacos!