Heat a skillet over medium-high heat. Add the ground beef and cook until browned, breaking it into small pieces with a spatula.

Drain excess fat from the beef, then add the taco seasoning and 1/4 cup of water. Stir well and simmer for 5 minutes until the mixture thickens.

While the beef cooks, warm the tortillas. Heat a separate skillet over medium heat, add a little oil, and lightly toast each tortilla for about 30 seconds per side. Keep them warm in a towel.

Prepare the toppings: Shred the lettuce, dice the tomato and onion, chop the cilantro, and set aside with cheese, sour cream, and salsa.

Assemble the tacos: Spoon the beef mixture onto each tortilla, then top with lettuce, tomato, onion, cheese, cilantro, and a drizzle of sour cream and salsa.

Serve immediately with lime wedges on the side for squeezing over the tacos.