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A piece of cooked cajun salmon in a cast iron pan.

Cast Iron Skillet Salmon

This salmon cooked in a cast iron skillet makes a healthy and gluten-free weeknight supper so simple! A delicious cajun-spice coated salmon fillet gets a sear in the cast iron pan and then finished in the oven.
4.36 from 37 votes
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Course: Main Course
Cuisine: American
Keyword: cast iron skillet salmon, salmon
Prep Time: 5 minutes
Cook Time: 15 minutes
Total Time: 20 minutes
Servings: 4 adults

Equipment

  • 1 Cast iron skillet or other oven-safe pan

Ingredients

  • 4 salmon filets, with the skin on
  • 1-2 tablespoon butter
  • Cajun seasoning
  • 1 lemon

Instructions

  • Pre-heat oven to 400 degrees F.
  • Heat a cast iron pan over medium heat and melt 1 tablespoon of butter in the pan.
  • Pat the salmon fillets dry with paper towel. Coat the top in the cajun seasoning.
  • Once the butter is melted and starts to bubble, add the salmon filets, skin side down to the pan.
  • Let the salmon cook for 3 minutes and don't flip it! As it cooks, spoon some of the butter overtop.
  • After 3 minutes, place the whole pan into the oven to finish cooking the salmon
  • Depending on the size of the fillets, it will take another 10-13 minutes to cook in the oven.
  • Salmon is done when an instant read thermometer in the thickest part reads 145F or the thickest part flakes easily with a fork.
  • Serve immediately on rice with lemon wedges. Squirt some lemon juice overtop the fish before eating.

Notes

Leftovers good in the fridge for up to 3 days.
Keep an eye on smaller pieces of salmon so you don't overcook them (it's easy to do). To prevent overcooking with smaller fillets, reduce the cook time in the oven. 
Nutrition information is approximate and for 1 filet of salmon.
Nutrition Facts
Cast Iron Skillet Salmon
Amount per Serving
Calories
274
% Daily Value*
Fat
 
14
g
22
%
Saturated Fat
 
3
g
19
%
Trans Fat
 
0.1
g
Polyunsaturated Fat
 
4
g
Monounsaturated Fat
 
4
g
Cholesterol
 
101
mg
34
%
Sodium
 
98
mg
4
%
Potassium
 
871
mg
25
%
Carbohydrates
 
3
g
1
%
Fiber
 
1
g
4
%
Sugar
 
1
g
1
%
Protein
 
34
g
68
%
Vitamin A
 
161
IU
3
%
Vitamin C
 
14
mg
17
%
Calcium
 
28
mg
3
%
Iron
 
2
mg
11
%
* Percent Daily Values are based on a 2000 calorie diet.
Calories
274
Nutrition Facts