Heat a skillet over medium heat.
Add the ground beef and cook until browned, breaking it apart with a spatula.
Drain excess fat from the skillet.
Add taco seasoning and water to the beef.
Stir well and simmer for 5-7 minutes until thickened.
Warm the tortillas in a separate skillet.
Assemble the tacos by placing beef in each tortilla.
Top with shredded lettuce, diced tomatoes, and cheese.
Drizzle with sour cream and garnish with cilantro.
Serve immediately with lime wedges on the side.