Cook the Beef
Heat a skillet over medium heat and cook the ground beef until browned, breaking it up as it cooks. Drain excess fat if necessary.
Add Aromatics
Stir in the chopped onion and minced garlic. Cook for 2-3 minutes until fragrant and softened.
Season the Beef
Add salt, black pepper, chili powder, cumin, smoked paprika, oregano, and cayenne (if using). Stir well to coat the beef evenly.
Simmer with Sauce
Pour in the tomato sauce and water, mixing well. Simmer for 5-7 minutes until the mixture thickens slightly.
Prepare the Taco Shells
Warm taco shells in a dry pan or microwave.
Assemble the Tacos
Fill each taco shell with the seasoned beef. Top with lettuce, shredded cheese, diced tomatoes, and cilantro.
Add Optional Toppings
Serve with sour cream, salsa, or hot sauce as desired.
Enjoy
Serve immediately with sides like rice, beans, or guacamole.