If you haven't had a basic taco in a while, it's time to revisit the original. Remember the spicy beef mixture in a crisp taco shell topped with lettuce, cheese, and tomato? It's still as tasty as ever.
1. Heat oven to 375 degrees F.
2. Heat oil in large nonstick skillet, over medium-high heat. Add onion; cook until onion is softened, about 3 minutes. Add beef; cook, stirring with wooden spoon to break up, until beef is no longer pink, 5 to 7 minutes.
3. Add chili powder, salt, cumin and red pepper; cook, stirring, 1 minute. Stir in tomato sauce. Bring to boiling. Lower heat to medium. Cook for about 5 minutes, stirring occasionally.
4. Heat taco shells in 375 degrees F oven for about 5 minutes. Spoon about 1/4 cup meat mixture into each shell. Serve with lettuce, tomato, cheese, diced onion and taco sauce.