Back to Recipes

One-Pan Cajun-Spiced Seared Tuna with Sautéed Greens

Name: One-Pan Cajun-Spiced Seared Tuna with Sautéed Greens
Prep time: 10 min
Cook time: 15 min
Total time: 25 min
Yield: 4 servings
Cuisine: Cajun-American
Ingredients: 4 tuna steaks (about 6 ounces each, 1-inch thick); 2 tablespoons olive oil, divided; 1 tablespoon Cajun seasoning (store-bought or homemade blend); 3 garlic cloves, minced; 1 small onion, thinly sliced; 5 cups kale, ribs removed and chopped; 3 cups fresh spinach; 1/4 cup low-sodium vegetable broth or water; Salt and freshly ground black pepper, to taste; Lemon wedges, for serving

By PanPotPlates Editorial TeamPublished Apr 9, 2026

Cajun-American 25 mins onepanquickeasypescatarianlowcarblightweeknightflavorful

One-Pan Cajun-Spiced Seared Tuna with Sautéed Greens with measured ingredients, 25-minute timing, 4-serving yield, and step-by-step instructions for one-pot, one-pan, skillet, casserole, and sheet-pan recipes.

Prep 10 min

Cook 15 min

Total 25 min

Servings 4

Difficulty easy

Cuisine Cajun-American

Ingredients

Servings 4

4 tuna steaks (about 6 ounces each, 1-inch thick)
2 tablespoons olive oil, divided
1 tablespoon Cajun seasoning (store-bought or homemade blend)
3 garlic cloves, minced
1 small onion, thinly sliced
5 cups kale, ribs removed and chopped
3 cups fresh spinach
1/4 cup low-sodium vegetable broth or water
Salt and freshly ground black pepper, to taste
Lemon wedges, for serving

Ingredients for One-Pan Cajun-Spiced Seared Tuna with Sautéed Greens

Instructions

Pat the tuna steaks dry with paper towels. Rub both sides evenly with Cajun seasoning, pressing lightly to adhere.
Heat 1 tablespoon olive oil in a large non-stick skillet over medium-high heat until shimmering.
Add the tuna steaks and sear for 2-3 minutes on each side for medium-rare doneness (adjust cooking time for preferred doneness). Remove the tuna from the pan and set aside, loosely tented with foil.
Reduce heat to medium and add the remaining 1 tablespoon olive oil to the skillet.
Add the sliced onion and minced garlic; sauté for 2-3 minutes until fragrant and softened.
Add the chopped kale and sauté for 3-4 minutes until it begins to wilt.
Add the fresh spinach and vegetable broth, stirring to combine. Cook for another 2-3 minutes until all greens are tender but still vibrant.
Season the greens with salt and pepper to taste. Return the tuna steaks to the pan with the greens just to warm through for about 1 minute.
Serve immediately with lemon wedges on the side for squeezing over the tuna and greens.