Instructions

1. Prepare all ingredients by measuring and chopping as specified in the recipe ingredient list.
2. Place a large skillet over medium-high heat and add the ground beef. Break the beef into small crumbles using a wooden spoon or spatula.
3. Cook the ground beef, stirring frequently, until it is completely browned and no pink remains, approximately 7-9 minutes.
4. Drain excess fat from the skillet using a colander or by carefully tilting the pan and removing liquid.
5. Return the skillet to the stove and sprinkle the entire packet of taco seasoning over the cooked ground beef.
6. Add 3/4 cup of water to the skillet and stir thoroughly to combine the seasoning with the beef.
7. Simmer the seasoned beef for 3-5 minutes, stirring occasionally, until the liquid reduces and the mixture thickens.
8. While the beef is simmering, preheat the oven to 350°F (175°C) to warm the taco shells.
9. Place taco shells on a baking sheet and warm in the oven for 3-5 minutes until crisp and heated through.
10. Remove taco shells from the oven and let them cool slightly for easier handling.
11. Assemble tacos by filling each shell with the seasoned ground beef.
12. Top each taco with shredded lettuce, diced tomatoes, shredded cheese, and a dollop of sour cream.
13. Serve immediately while the beef is hot and the taco shells are crisp.