Directions

1. Preheat a skillet or griddle over medium-high heat and lightly oil the surface.
2. Divide ground beef into four equal balls.
3. Place each ball on the hot surface and smash down firmly into thin patties.
4. Season patties with salt and pepper and cook about 2-3 minutes per side until golden with crispy edges.
5. Warm tortillas in a separate pan or on grill until soft and pliable.
6. Place cooked patties on each tortilla and top with cheese slices to melt slightly.
7. Add diced avocado, chopped onion, and cilantro.
8. Squeeze lime juice over toppings and add a dollop of sour cream if desired.
9. Fold tacos and serve immediately.