01 - Combine chili powder, cumin, smoked paprika, garlic powder, onion powder, dried oregano, cayenne pepper, kosher salt, and black pepper in a small bowl. Mix thoroughly and set aside.
02 - Heat a large skillet over medium-high heat. Add ground beef, breaking it apart with a spoon, and cook until browned throughout, approximately 5–6 minutes. Drain excess fat if necessary.
03 - Sprinkle the prepared seasoning mix evenly over the browned beef. Stir continuously to ensure the meat is evenly coated with the spice blend.
04 - Pour in water and add tomato paste. Reduce heat to medium and simmer for 4–5 minutes, stirring frequently, until the sauce thickens and flavors meld together. Adjust seasoning to taste.
05 - Heat tortillas in a dry skillet, microwave, or directly over an open flame until warm and pliable.
06 - Divide seasoned beef evenly among tortillas. Top with desired garnishes including lettuce, tomatoes, cheese, red onion, cilantro, avocado, sour cream, and salsa.
07 - Present tacos while tortillas remain warm and beef mixture is at peak temperature.