Oven-Baked Salmon Stuffed with Spinach and Feta

Prepare a professional Mediterranean-style dinner that takes only 30 minutes to complete. This recipe combines tender salmon fillets with a savory cheese and spinach filling for a nutrient-dense meal.

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List of ingredients

  • 4x 6-ounce pieces of salmon (approximately 170 grams each; longer pieces provide more stuffing space)
  • 2 Tbsp olive oil (divided for brushing and sautรฉing)
  • 3 cups baby spinach, packed (fresh baby spinach wilts quickly and evenly)
  • 1 tsp Italian seasoning (a blend of oregano, basil, and thyme)
  • 1/2 tsp paprika (regular or smoked for a subtle depth)
  • A pinch of cayenne pepper (adds a very mild heat)
  • Approx. 5.3 ounce block of feta cheese (approximately 150 grams; block feta melts better than pre-crumbled)
  • 1/4 cup parmesan, freshly grated (parmigiano-reggiano is recommended for a sharper flavor)
  • 1/4 cup jarred roasted red peppers (chopped into small 1/4-inch pieces)
  • Salt and pepper, to taste (used for seasoning the fish and the spinach)

step-by-step instructions

  1. Prepare the oven and pan: Preheat your oven to 400F. Line a baking sheet with parchment paper to prevent the salmon from sticking and to make cleanup easier. Place the salmon pieces onto the lined baking sheet, skin-side down.
  2. Create the pocket: Using a sharp knife, slice down the middle of each piece of salmon lengthwise. Ensure the knife does not cut all the way through, leaving the bottom and both ends of the flesh attached to form a pocket.
  3. Season the fish: Brush the salmon fillets with 1 Tbsp of olive oil. Season the exterior and the inside of the pocket with salt and pepper, then set the fillets aside.
  4. Sautรฉ the greens: Heat the remaining 1 Tbsp of olive oil in a large pan over medium heat. Once the oil is hot, add the baby spinach, Italian seasoning, paprika, cayenne, salt, and pepper. Sautรฉ for a few minutes until the spinach has completely wilted.
  5. Mix the stuffing: Turn off the heat. Stir in the chopped roasted red peppers, feta cheese, and parmesan. Use a spoon to press down on the feta to soften and “mush” it, ensuring all ingredients stick together in a cohesive mixture.
  6. Stuff the salmon: Spoon the spinach and feta mixture into the cut part of each salmon fillet. Distribute the filling evenly among the four pieces until all the mixture is used.
  7. Bake: Place the stuffed salmon in the oven. Bake for 12-17 minutes, depending on the thickness of the fillets and your preferred level of doneness. Remove from the oven and serve immediately.

Choosing the Right Salmon

Prioritize Fresh Fillets Over Frozen

Fresh salmon typically maintains a firmer texture, which helps the fillet hold the stuffing in place during the baking process. If using frozen salmon, thaw it completely in the refrigerator overnight to avoid excess moisture that can steam the fish rather than roast it.

Select Longer Cut Pieces

When purchasing salmon, ask the fishmonger for longer, rectangular cuts rather than short, thick medallions. Longer pieces provide a larger surface area for the lengthwise slice, making it much easier to fit a generous amount of stuffing inside.

Maintain the Skin for Stability

Keeping the skin on the salmon during baking provides a physical barrier that prevents the fish from sticking to the pan. It also helps the fillet retain its shape and moisture while the top is being exposed to the high heat of the oven.

Optimizing the Filling Texture

Prevent Watery Spinach

If you find that the sautรฉed spinach is releasing too much liquid, carefully drain the mixture through a fine-mesh strainer before adding the cheeses. Excess moisture in the filling can leak out during baking, potentially making the salmon soggy.

Use Block Feta for Better Melting

Choose a block of feta stored in brine rather than pre-crumbled varieties. Brined feta has a higher moisture content and a creamier consistency, which allows it to blend more seamlessly with the parmesan and spinach.

Incorporate Sun-Dried Tomatoes

For a more intense flavor profile, you can substitute the roasted red peppers with chopped sun-dried tomatoes. The concentrated sweetness and acidity of the tomatoes complement the salty feta and rich salmon.

Precision Baking and Temperature

Use a Meat Thermometer

To ensure the salmon is cooked perfectly, use an instant-read thermometer in the thickest part of the fillet. The USDA recommends an internal temperature of 145F, but many prefer 130-135F for a more moist, medium-rare center.

Identify Visual Cues for Doneness

If you do not have a thermometer, cut into the thickest part of the fish. The salmon is done when the color changes from a translucent pink to an opaque whitish-pink and the flakes separate easily with a fork.

Adjust Baking Time for Thickness

Salmon fillets vary in thickness; thinner cuts may only need 12 minutes, while very thick fillets might require the full 17 minutes. Start checking the fish at the 12-minute mark to prevent overcooking, which leads to a dry texture.

Recommended Side Dish Pairings

Nutritious Whole Grains

Pair the stuffed salmon with farro, quinoa, or brown rice for a hearty meal. Toss the grains with a bit of olive oil, minced garlic, and fresh parsley to mirror the Mediterranean flavors in the salmon filling.

Light Pasta Options

Couscous or orzo are excellent alternatives that absorb the juices from the salmon. Sautรฉ the pasta with a squeeze of lemon juice and a pinch of salt to provide a bright contrast to the rich feta cheese.

Roasted Root Vegetables

Mashed, steamed, or roasted potatoes provide a comforting base for the fish. For a healthier alternative, roasted sweet potato cubes seasoned with cinnamon or paprika complement the smokiness of the paprika in the salmon.

Storage and Food Safety

Refrigerating Leftovers

Place leftover stuffed salmon in an airtight container and store it in the refrigerator for up to three days. Ensure the fish is cooled slightly before sealing the container to prevent excessive condensation from forming.

Best Reheating Methods

To avoid drying out the fish, reheat leftovers in an oven at 275F for about 10-15 minutes until warmed through. Avoid using a high-heat microwave setting, as this often makes salmon rubbery and separates the cheese filling.

Freezing Considerations

It is not recommended to freeze the salmon after it has been stuffed and baked. The texture of the spinach and feta mixture changes significantly upon freezing and thawing, often becoming grainy or watery.

Make-Ahead Preparation

Prepping the Spinach Mixture

You can prepare the spinach, pepper, and cheese filling up to 24 hours in advance. Store the mixture in a sealed container in the refrigerator and simply spoon it into the raw salmon right before baking.

Pre-Stuffing the Fillets

If you are hosting a dinner party, you can slice and stuff the salmon fillets several hours ahead of time. Keep them covered with parchment paper and refrigerated until you are ready to put them in the oven.

Troubleshooting Common Issues

Filling Falling Out of the Salmon

If the filling escapes the pocket, ensure you are not overfilling the salmon. Leave a small gap at the edges of the slice to allow the fish to close slightly over the stuffing as it cooks.

Salmon Texture is Too Dry

Dry salmon is usually the result of overcooking or using a temperature that is too high. Stick to the 400F setting and use a thermometer to pull the fish out the moment it reaches your desired internal temperature.

Filling Lacks Cohesion

If the filling is too loose, ensure you are pressing down on the feta during the mixing stage. The feta needs to be slightly mashed to act as a binder for the spinach and roasted peppers.

Frequently Asked Questions

Can I use a different type of fish?

Yes, this stuffing works well with other thick white fish such as halibut or cod. However, you may need to adjust the baking time as these fish have different densities and cook at different rates than salmon.

Is it possible to make this recipe dairy-free?

You can replace the feta and parmesan with plant-based alternatives. Look for almond-based feta and nutritional yeast or a vegan parmesan substitute to maintain the salty, tangy flavor profile.

What can I use if I don’t have Italian seasoning?

You can create your own blend by mixing equal parts dried oregano, dried basil, and dried thyme. A pinch of garlic powder can also be added to enhance the savory notes of the filling.

Can I use frozen spinach instead of baby spinach?

Yes, but you must thaw the frozen spinach completely and squeeze out as much water as possible using a kitchen towel or press. Failure to remove the water will result in a soggy filling and undercooked fish.

Should I remove the skin before stuffing?

It is better to keep the skin on while baking for structural support and moisture retention. You can easily slide the skin off with a knife or fork after the salmon has been cooked and rested.

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Oven-Baked Salmon Stuffed with Spinach and Feta

Oven-Baked Salmon Stuffed with Spinach and Feta


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  • Author: alyssabennett
  • Total Time: 30 minutes
  • Yield: 4 servings 1x
  • Diet: Gluten Free

Description

This stuffed salmon recipe looks fancy, but it’s shockingly easy to make! Salmon is stuffed with a Mediterranean-inspired mixture of spinach, feta, and roasted red peppers, then oven-baked for a healthy and impressive meal.


Ingredients

Scale
  • 4x 6-ounce pieces of salmon
  • 2 Tbsp olive oil (divided)
  • 3 cups baby spinach, packed
  • 1 tsp Italian seasoning
  • 1/2 tsp paprika (regular or smoked)
  • A pinch of cayenne pepper
  • Approx. 5.3 ounce block of feta cheese
  • 1/4 cup parmesan, freshly grated
  • 1/4 cup jarred roasted red peppers, chopped
  • Salt and pepper, to taste

Instructions

  1. Step 1: Preheat oven to 400F. Line a baking sheet with parchment paper. Place salmon pieces onto lined baking sheet, skin-side down.
  2. Step 2: Using a sharp knife, slice down the middle of each piece of salmon, lengthwise, leaving the salmon flesh still attached at the very bottom and on either end.
  3. Step 3: Brush salmon with 1 Tbsp of olive oil and season with salt and pepper. Set aside.
  4. Step 4: Heat remaining 1 Tbsp of olive oil on a large pan over medium. Once hot, add spinach, Italian seasoning, paprika, cayenne, salt, and pepper. Sautรฉ for a couple minutes, until wilted.
  5. Step 5: Turn off the heat, then add in chopped roasted red peppers, feta cheese, and parmesan. Stir to combine well, pressing down on the feta to soften it until all ingredients stick together.
  6. Step 6: Spoon the spinach-feta mixture into the cut part of the salmon. Repeat until all mixture is used up and pieces of salmon are evenly filled.
  7. Step 7: Place salmon in the oven and bake for about 12-17 minutes, depending on desired doneness and thickness of the fish. Remove from oven and serve hot!

Notes

Leftovers keep for up to 3 days in an airtight container in the fridge. For best texture, use fresh salmon. Roasted red peppers can be swapped with sun-dried tomatoes if preferred.

  • Prep Time: 10 minutes
  • Cook Time: 20 minutes
  • Category: Main Course
  • Method: Baking
  • Cuisine: Mediterranean

Nutrition

  • Serving Size: 1 piece of salmon
  • Calories: 438 kcal
  • Sugar: 2 g
  • Sodium: 750 mg
  • Fat: 28 g
  • Saturated Fat: 9 g
  • Unsaturated Fat: 19 g
  • Trans Fat: 0 g
  • Carbohydrates: 4 g
  • Fiber: 1 g
  • Protein: 42 g
  • Cholesterol: 132 mg

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