Preheat oven to 400. Line a rimmed baking sheet with foil.
Mix 2 teaspoon of the Cajun seasoning into the ground turkey and shape into 4 burgers. Sprinkle the remaining 1 teaspoon Cajun seasoning over the burgers.
Bake for 20-30 minutes until they reach 160 degrees when checked with a meat thermometer.
To assemble:
Put 1 slice of provolone cheese on the bottom bun. Top with 1 tablespoon olive salad. Top with a cooked turkey burger. Add another slice of cheese and 1 more tablespoon olive salad. Put the top of the hamburger bun on. Enjoy!
Notes
If you do not have a Costco membership here are some other options to buy olive salad.