Pat salmon dry with clean paper towel. Rub salmon all over with blackened seasoning Drizzle 1-2 tablespoons of olive oil over seasoned salmon; rub into salmon.
Bring a large cast iron skillet to medium-high heat. Add 1 tablespoon of oil; swirl to coat the pan. Sear salmon (skin-side up) for approx. 1-3 minutes (or until there is a good char). Flip salmon over so skin side is down and place in the oven (middle rack and uncovered). Let cook 10-14 minutes or until fully cooked (internal temperature of 145 degrees F).
Remove from oven and let cool slightly.
Divide romaine lettuce between 4 bowls. Place one piece of salmon in each bowl. Add parmesan cheese, avocado, hard-boiled egg and pickled onion (if desired).
Top with homemade caesar dressing and enjoy!
Notes
Dairy-Free: use a dairy-free caesar dressing such a Primal Kitchen or Tessemae's and either omit the parmesan cheese or use a dairy-free alternative.
Whole30/Paleo: to make Whole30/Paleo simply omit the parmesan cheese and use a Whole30 compatible caesar dressing such as Primal Kitchen or Tessemae's.
Grill Option: you can also grill the salmon if you want - prepare it as directed above and then follow our tutorial on how to grill salmon!