In a mixing bowl, season the ground beef with salt and pepper. Divide it into 8 equal portions and gently form loose balls—avoid overworking the meat.
Heat a skillet or a griddle over medium-high heat and add a splash of cooking oil. Once hot, place the meat balls onto the skillet and use a spatula or a burger press to smash them down flat. Cook for about 2-3 minutes until a nice crust forms, then flip.
After flipping the patties, place a slice of cheese on each burger and let cook for an additional 1-2 minutes until the cheese is melted and the burgers are fully cooked.
While the burgers are cooking, warm the tortillas on a separate skillet or in the microwave until soft and pliable.
In each warm tortilla, place a smashed burger patty. Top with shredded lettuce, diced tomatoes, chopped onions, sliced pickles, and a drizzle of mayo, ketchup, and mustard.
If desired, add some hot sauce for an extra layer of flavor. You can also serve with lime wedges on the side for a fresh zing.
Notes
Optional: Serve with lime wedges for extra freshness.