For homemade Cajun seasoning, combine the following ingredients:
1 teaspoon salt
1 teaspoon garlic powder
1 1/2 teaspoon paprika
1/2 teaspoon pepper
1/2 teaspoon onion salt
1/2 teaspoon cayenne pepper
heaping 1/2 teaspoon oregano
1/4 teaspoon red pepper flakes