You can mix up your own cajun spice mix with spices you already have in your pantry. I make up a big batch and store it in a repurposed spice jar until it is needed.
Ingredients
4teaspoonssalt
4teaspoonsgarlic powder
5teaspoonspaprika
2teaspoonsground black pepper
2½teaspoonsdried oregano
½teaspoondried thyme
2teaspoonsonion powder
1teaspoonground cayenne pepperadd more to increase the spiciness
Instructions
Mix everything well. Store in an airtight container until ready to use.