Easy Stuffed Mediterranean Swordfish (30-Minute Recipe)

Seafood

March 9, 2026

A smiling woman in a bright kitchen holding a plate of grilled Stuffed Mediterranean Swordfish filled with sautéed spinach and crumbled feta cheese.

Craving a five-star meal without the fuss? This Stuffed Mediterranean Swordfish delivers a gourmet experience right from your own kitchen in just 30 minutes! Imagine a thick, juicy swordfish steak, grilled to perfection and bursting with a savory filling of briny feta, earthy spinach, and a bright hint of lemon. It’s an elegant, easy, and incredibly delicious dish that has quickly become my go-to for a healthy weeknight dinner.

Ingredients

• 8.0 oz / 227g swordfish steak, 2 to 3 inches thick
• 1.0 tbsp / 15g fresh lemon juice
• 1.0 tbsp / 13.5g olive oil, for marinade
• 1.0 tsp / 4.5g olive oil, for sautéing
• 1 garlic clove, 5g, minced
• 1.0 cup / 30g fresh spinach, rinsed and finely minced
• 0.25 cup / 38g crumbled feta cheese

Instructions

1. Cooking Directions
2. Preheat the grill to high heat and lightly grease the grates with olive oil.
3. Carefully cut a horizontal slit into the center of the swordfish steak to create a deep pocket, keeping three sides intact.
4. In a small bowl, whisk together the lemon juice and 1 tbsp of olive oil, then brush the mixture evenly onto both sides of the fish.
5. Heat the remaining 1 tsp of olive oil in a small skillet over medium-low heat.
6. Add the minced garlic and sauté for about 30 seconds until fragrant.
7. Add the spinach to the skillet and cook for 3 to 5 minutes, until the leaves are fully wilted. Remove from heat.
8. Carefully spoon the wilted spinach and garlic mixture into the swordfish pocket.
9. Scatter the crumbled feta cheese over the spinach inside the pocket. Secure with toothpicks if needed.
10. Place the stuffed swordfish on the preheated grill and cook for 7-9 minutes.
11. Gently flip the steak and continue grilling for another 5-7 minutes, or until the swordfish is opaque and firm with an internal temperature of 145°F.
12. Remove from the grill and serve immediately.

Nutritional Information

• Calories: 317 kcal
• Total Fat: 20.8g
• Total Carbs: 4.1g
• Dietary Fiber: 2.2g
• Net Carbs: 1.9g
• Protein: 27.8g

Pro Tips

• Choose the Right Cut: Always opt for a swordfish steak that is at least 2 inches thick. A thicker cut is easier to stuff without tearing and holds the filling more securely.
• Pat the Fish Dry: Before marinating, pat the swordfish dry with a paper towel. This helps the marinade adhere and creates beautiful, professional-looking grill marks.
• Squeeze the Spinach: After sautéing the spinach, squeeze out any excess moisture before stuffing the fish. This crucial step prevents the filling from becoming watery and the fish from getting soggy.

FAQ

Q: How do I know when the swordfish is cooked perfectly
A: The best way to ensure your swordfish is perfectly cooked is to use a meat thermometer. It’s ready when the internal temperature reaches 145°F (63°C). The fish will also be opaque and firm to the touch.

Q: Can I cook this stuffed swordfish in a pan instead of a grill
A: Absolutely. If you don’t have a grill, you can use a grill pan or a heavy-duty skillet. Heat a bit of olive oil over medium-high heat and cook the swordfish for about 6-8 minutes per side, until it’s cooked through to 145°F.

Q: What makes the filling watery and how can I prevent it
A: A watery filling is usually caused by excess moisture from the spinach. To prevent this, make sure to squeeze the sautéed spinach thoroughly with your hands or a paper towel to remove as much liquid as possible before stuffing it into the fish.

Q: What kind of swordfish steak is best for this recipe
A: For best results, choose a thick swordfish steak that is at least 2 inches thick. A thicker cut makes it easier to create a deep pocket for the stuffing and helps prevent the fish from tearing.

More Keto Recipes

A smiling woman holding a delicious baking dish of Keto Fried Salmon paired with golden, cheesy baked broccoli and fresh lime wedges in a bright kitchen.

Keto Fried Salmon with Broccoli and Cheese

Ingredients Salmon: 12 oz (340g) salmon fillet; cut into bite-sized pieces. Butter: 3.0 tbsp (42g) butter, divided. Broccoli: 8 oz (225g) fresh broccoli; cut into small florets. Cheese: 2.0 oz (56g) cheddar cheese, grated (about 0.5 cups). Seasoning: 0.1 tsp (0.5g)...

A smiling woman holding a rustic ceramic plate featuring beautifully golden Roasted Salmon with Parmesan Dill Crust, served alongside fresh asparagus and a creamy dill sauce.

Roasted Salmon with Parmesan Dill Crust

Preparation Time: 10 minutes Cooking Time: 10 minutes Servings: 2 Ingredients 0.5 lbs (8.0 oz / 225g) salmon, cut into two equal pieces 1.0 tbsp (0.1 oz / 3g) fresh dill weed, chopped 0.25 cups (2.0 oz / 56g) cottage cheese 1.0 tbsp (0.5 oz / 14g) extra virgin olive...

A smiling woman in a grey sweater and beige apron holding a plate of delicious Keto Baked Salmon with Pesto, green sauce, and asparagus in a bright kitchen setting.

Keto Baked Salmon with Pesto

Ingredients For the Salmon: 0.5 lbs (8 oz / 225g) fresh salmon fillets 1 oz (28g / 2 tbsp) green pesto 0.05 oz (1.5g / 0.25 tsp) salt 0.05 oz (1.5g / 0.25 tsp) black pepper For the Creamy Green Sauce: 0.25 cups (60g / 2.1 oz) plain Greek yogurt 1 oz (28g / 2 tbsp)...

Person in a gray sweater holding a bowl of salad with smoked salmon, olives, arugula, and a lemon wedge in a kitchen.

Smoked Salmon Salad

Ingredients To make this vibrant dish, you will need the following exactly measured ingredients: 2 cups (1.5 oz / 42g) fresh arugula salad leaves 2 oz (56g) smoked salmon 4 large olives (0.5 oz / 14g) 1 tsp (0.1 oz / 2.8g) pink peppercorns, lightly crushed 1 slice...

A smiling woman wearing an apron holds a rustic bowl of freshly prepared Fish and Leek Sauté, showcasing the vibrant green leeks and cooked diced trout.

Fish and Leek Sauté

Ingredients Leek: 1.0 medium leek, chopped (approx. 5.3 oz / 150g) Trout: 2.0 fillets, diced (8.0 oz / 225g) Tamari: 1.0 tbsp (0.5 oz / 15g) tamari soy sauce Ginger: 1.0 tsp (0.1 oz / 3g) fresh ginger, grated Oil: 1.0 tbsp (0.5 oz / 14g) avocado oil Seasoning: 0.1 tsp...

A smiling woman standing in a bright kitchen, holding a rustic ceramic bowl filled with freshly cooked Garlic Lime Mahi-Mahi, garnished with chopped cilantro and lime wedges.

Garlic Lime Mahi-Mahi

Preparation Time: 15 minutes Cooking Time: 10 minutes Marinating Time: 30 minutes Servings: 4 Ingredients 4 Mahi-Mahi filets, approximately 16 to 20 oz (450g to 560g) total Zest and juice of 1 large fresh lime, approximately 2 tbsp (1 fl oz / 30ml) of juice 0.25 cup...

A smiling woman in a bright kitchen holding an oven-safe dish of freshly broiled Keto Spicy Oysters resting on a bed of fresh green basil leaves.

Ketogenic Spicy Oyster

Preparation Time: 10 minutes Cooking Time: 5 minutes Servings: 2 Ingredients 12 whole oysters, freshly shucked (yields approx. 8 oz / 225g of oyster meat) 1 tbsp. (0.5 oz / 15g) olive oil 7-8 fresh basil leaves (approx. 0.1 oz / 3g) 1 tbsp. (0.6 oz / 17g) garlic chili...

A food blogger holding a baking dish filled with fresh Keto Baked Salmon with lemon slices and butter, presenting the finished dish in a bright kitchen setting.

Keto Baked Salmon with Lemon and Butter

Ingredients Salmon: 16 oz (454g) salmon fillet, whole or portioned Lemon: 1 whole fresh lemon (yielding approximately 0.25 cup or 2 oz (60g) of slices and juice) Butter: 6 tbsp (3 oz / 85g) unsalted butter, divided Olive Oil: 1 tbsp (0.5 oz / 15ml) extra-virgin olive...

A smiling female chef holding a freshly prepared Tiger Prawn Salad over mixed lettuce greens with a creamy lemon dijon dressing in a bright, modern kitchen.

Salad of Prawns and Mixed Lettuce Greens

Ingredients Mixed Greens: 2.0 cups (2.0 oz / 57g) mixed lettuce greens Prawns: 8.0 oz (225g) tiger prawns, peeled and deveined Aioli: 0.25 cup (2.0 oz / 57g) aioli Olive Oil: 1.0 tbsp. (0.5 oz / 14g) olive oil Lemon Juice: 1.0 tbsp. (0.5 oz / 15g) freshly squeezed...

A smiling woman holding a delicious baking dish of Keto Fried Salmon paired with golden, cheesy baked broccoli and fresh lime wedges in a bright kitchen.

Keto Fried Salmon with Broccoli and Cheese

Ingredients Salmon: 12 oz (340g) salmon fillet; cut into bite-sized pieces. Butter: 3.0 tbsp (42g) butter, divided. Broccoli: 8 oz (225g) fresh broccoli; cut into small florets. Cheese: 2.0 oz (56g) cheddar cheese, grated (about 0.5 cups). Seasoning: 0.1 tsp (0.5g)...

A smiling woman holding a rustic ceramic plate featuring beautifully golden Roasted Salmon with Parmesan Dill Crust, served alongside fresh asparagus and a creamy dill sauce.

Roasted Salmon with Parmesan Dill Crust

Preparation Time: 10 minutes Cooking Time: 10 minutes Servings: 2 Ingredients 0.5 lbs (8.0 oz / 225g) salmon, cut into two equal pieces 1.0 tbsp (0.1 oz / 3g) fresh dill weed, chopped 0.25 cups (2.0 oz / 56g) cottage cheese 1.0 tbsp (0.5 oz / 14g) extra virgin olive...

A smiling woman in a grey sweater and beige apron holding a plate of delicious Keto Baked Salmon with Pesto, green sauce, and asparagus in a bright kitchen setting.

Keto Baked Salmon with Pesto

Ingredients For the Salmon: 0.5 lbs (8 oz / 225g) fresh salmon fillets 1 oz (28g / 2 tbsp) green pesto 0.05 oz (1.5g / 0.25 tsp) salt 0.05 oz (1.5g / 0.25 tsp) black pepper For the Creamy Green Sauce: 0.25 cups (60g / 2.1 oz) plain Greek yogurt 1 oz (28g / 2 tbsp)...

Person in a gray sweater holding a bowl of salad with smoked salmon, olives, arugula, and a lemon wedge in a kitchen.

Smoked Salmon Salad

Ingredients To make this vibrant dish, you will need the following exactly measured ingredients: 2 cups (1.5 oz / 42g) fresh arugula salad leaves 2 oz (56g) smoked salmon 4 large olives (0.5 oz / 14g) 1 tsp (0.1 oz / 2.8g) pink peppercorns, lightly crushed 1 slice...

0
Would love your thoughts, please comment.x
()
x
0