In a mixing bowl, combine the ground beef with taco seasoning.

Heat a large skillet or griddle over medium-high heat.

Divide the beef mixture into four equal portions and shape them into balls.

Place the beef balls onto the hot skillet and use a spatula to firmly smash them down.

Let the patties cook without moving them for about 2-3 minutes.

Carefully flip the patties and add shredded cheese on top.

Toast the burger buns on the skillet until golden brown.

Layer the bottom bun with shredded lettuce, a patty, diced tomatoes, a dollop of sour cream, and salsa.