In a large skillet over medium-high heat, cook the ground beef and onion until the beef is no longer pink and the onion is tender. Drain off any excess fat.
Stir in the green chiles, chili powder, cumin, garlic powder, salt, and pepper. Cook for an additional 5 minutes, stirring occasionally.
Warm the tortillas according to the package directions.
To assemble the tacos, spoon the beef mixture into each tortilla and top with salsa and cheese. Serve immediately.
Interesting Facts
Tacos are believed to have originated in the 18th century in the silver mines of Mexico.
Tacos are a popular street food in Mexico and are often served on a soft corn or flour tortilla.
Green chiles are a popular ingredient in Mexican cuisine and can be used to add flavor and heat to many dishes.