And if you don't have a package of taco seasoning, here's a DIY equivalent:
Taco seasoning (homemade alternative to envelope)
1 tablespoon chili powder
1/4 teaspoon garlic powder
1/4 teaspoon onion powder
1/4 teaspoon crushed red pepper flakes
1/4 teaspoon dried oregano
1/2 teaspoon paprika
1 1/2 teaspoons ground cumin