30-Minute Blackened Cajun Salmon
Tender salmon fillets coated in a bold Cajun spice blend and pan-seared to create a flavorful blackened crust, paired with quickly sautéed zucchini that absorbs the aromatic spices from the pan. This protein-rich dish delivers smoky paprika, earthy thyme and oregano, and a gentle heat from cayenne pepper. Perfect for weeknight dinners when you want restaurant-quality flavor in under 30 minutes. The zucchini cooks in the same skillet, picking up all the delicious spices and butter for a cohesive, satisfying meal.
Ingredients
Instructions
- 1
Combine smoked paprika, thyme, oregano, cumin, cayenne, garlic powder, onion powder, salt, and pepper in a bowl
- 2
Remove skin from salmon and cut into four equal portions if needed
- 3
Generously coat all sides of salmon with the prepared Cajun seasoning
- 4
Slice zucchini into half-rounds and set aside
- 5
Heat butter and cooking oil in a skillet over medium-high heat
- 6
When skillet is hot and butter is melted and foaming, add salmon pieces
- 7
Cook salmon for 5-7 minutes on each side until dark brown crust forms and fish is cooked through
- 8
Remove cooked salmon to a clean plate
- 9
Add sliced zucchini to the same skillet
- 10
Quickly sauté zucchini in residual butter and spices until tender
- 11
Serve salmon and zucchini immediately
Tips
Let the salmon develop a proper crust by not moving it too early - wait for the full 5-7 minutes before flipping for the best blackened exterior.
Don't overcook the zucchini as it will become mushy - it should be tender but still have a slight bite to it.
Make sure your skillet is properly preheated before adding the salmon to achieve that signature blackened sear.
Good to Know
Store leftovers in refrigerator for up to 2 days. Reheat gently to avoid overcooking the salmon.
Season salmon up to 2 hours ahead and refrigerate. Cook just before serving for best texture.
Serve immediately while salmon is hot and zucchini is tender. Pairs well with rice, quinoa, or a simple salad.
Common Mistakes
Don't overcrowd the pan when cooking salmon to ensure proper searing and crust formation.
Avoid moving the salmon too early to prevent the seasoning crust from sticking to the pan.
Substitutions
Dairy-Free Swaps
General Alternatives
store-bought alternative
FAQ
Can I use frozen salmon for this recipe?
Yes, but thaw completely and pat very dry before seasoning. Excess moisture will prevent proper blackening and may cause oil to splatter.
How do I know when the salmon is cooked through?
The internal temperature should reach 145°F, or the flesh should flake easily with a fork and appear opaque throughout.
Can I make the Cajun seasoning ahead of time?
Absolutely. Mix the spice blend and store in an airtight container for up to 6 months for maximum flavor.