For my homemade cajun seasoning mix together the following:
1 teaspoon salt, 1 teaspoon garlic powder, 1 1/2 teaspoons 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