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Salmon-Stuffed Baked Bell Peppers

Sweet red bell peppers filled with flaked salmon, fluffy quinoa, wilted spinach, and tangy feta, then baked until the peppers are tender and the tops are golden.

By Camille McLaughlin, RDN, LD, registered dietitian nutritionist

Built forPescatarianLunch
Also fits Balanced Gut-Health High-Protein Anti-Inflammatory Mediterranean High-Fiber GLP-1
Red bell pepper halves go slack and sweet in the oven, blistering where they touch the pan. Flaked salmon and quinoa fill them out with wilted spinach worked through, crumbled feta turns salty and golden across the tops, and lemon squeezed over the finished peppers keeps the richness in check.
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Why You'll Love This Recipe

This is a bright, satisfying plate built around tender baked bell peppers and a savory filling of salmon, quinoa, spinach, and feta. It suits anyone who wants something warm that eats like real food and still feels light, and it is one of the better answers to leftover cooked salmon. It also reheats without falling apart, which is more than most stuffed vegetables manage, since the filling is bound by quinoa rather than by egg or cheese alone.

The dish works because each component pulls its weight. Softening the onion and garlic first builds a savory base, wilting the spinach into that base keeps it from weeping water into the filling, and folding everything together off the heat means the salmon stays in tender flakes instead of turning to mush. The feta does double duty, melting slightly into the filling for tang and browning on top for a little salty crust. A squeeze of lemon lifts the whole thing.

Protein from the salmon, the feta, and the quinoa, set alongside fiber from the peppers, the spinach, and the grain, is what makes the fullness here last. The salmon brings richness and omega-3 fats, the quinoa gives a gentle chew and steady energy, and the peppers turn silky and sweet as they bake. Together they make a plate that tastes indulgent while leaning on whole, nourishing ingredients.

Roasted red pepper halves overflowing with salmon-quinoa filling topped with melted feta. Save
Prep: 20 minsCook: 25 minsTotal: 45 minsMakes: 4 servingsServing: 2 stuffed pepper halves

Ingredients

Serves4Amounts change with the number. The nutrition panel is per serving, so it stays the same.
  • about 480g cooked salmon, flaked
  • 4 large red bell peppers, halved and seeded
  • 2 1/2 cups cooked quinoa
  • 4 cups baby spinach, chopped
  • 3/4 cup crumbled feta
  • 1 onion, diced
  • 3 cloves garlic, minced
  • 3 tbsp olive oil
  • 2 tbsp lemon juice
  • 1/2 tsp salt

Instructions

  1. Start with cooked salmon, flaked large: This wants about 480 g of cooked salmon. From raw, set the fillets skin side down in a wide pan with a splash of water, cover, and steam over medium heat 8 to 10 minutes, until the flesh is opaque and flakes easily. Peel away the skin and flake the flesh into large pieces, since the filling gets stirred twice more and anything shredded fine ends up as paste.
  2. Rinse and cook the quinoa: Rinse the quinoa under cold water in a fine-mesh sieve to remove its bitter coating, then simmer it about 15 minutes, until the grains are tender and the little spiral germ has unfurled, and drain off any excess before fluffing. Rinsing is the step people skip and the reason quinoa sometimes tastes soapy.
  3. Halve the peppers through the stem: Heat the oven to 400°F (200°C). Halve the bell peppers through the stem rather than across it and scrape out the seeds and white ribs, then set the halves cut side up in a baking dish. Cutting through the stem keeps each half rigid enough to hold a mound of filling, where a pepper cut across collapses sideways in the dish.
  4. Soften the onion, then wilt the spinach: Warm the olive oil in a skillet over medium and cook the onion about 4 minutes, until soft and translucent, then add the garlic for about 30 seconds, until fragrant, and the spinach, stirring just until it wilts. Cooking the spinach now rather than raw in the filling is what keeps the peppers from filling with water in the oven.
  5. Fold the filling off the heat: Take the skillet off the heat and fold in the flaked salmon, quinoa, lemon juice, salt, and half the feta, stirring gently so the salmon stays in flakes rather than breaking down. Off the heat the feta softens without melting into the grain, which is what leaves you salty pockets rather than an evenly salty filling.
  6. Bake covered 20 to 25 minutes: Mound the filling into the pepper halves, press it in lightly, scatter the remaining feta over the tops, cover the dish with foil, and bake 20 to 25 minutes, until the peppers are tender when pierced. The foil traps steam so the peppers soften, since everything inside them is already cooked and only the pepper itself needs the oven. Uncover for the last few minutes if you want a browned top.
Nutrition Facts
4 servings per recipe
Serving size2 stuffed pepper halves
Calories603
% Daily Value*
Total Fat 35g45%
Saturated Fat 10g48%
Trans Fat 0g
Cholesterol 91mg30%
Sodium 714mg31%
Total Carbohydrate 36g13%
Dietary Fiber 7g26%
Total Sugars 10g
Includes 0g Added Sugars 0%
Protein 36g
Vitamin D 13.3mcg67%
Calcium 221mg17%
Iron 3.9mg22%
Potassium 1166mg25%
* Percent Daily Values are based on a 2,000 calorie diet. Values are computed from USDA FoodData Central and are estimates. Per serving (2 stuffed pepper halves).

Variations

  • Swap the grain: Use cooked brown rice, farro, or bulgur in place of the quinoa for a different chew. Farro and bulgur add gluten.
  • Herb and lemon: Fold chopped fresh dill or parsley and a little grated lemon zest into the filling for a fresher, greener flavor.
  • Different cheese: Trade the feta for crumbled goat cheese or grated Parmesan; both still add dairy and shift the tang and saltiness.
  • Add some heat: Stir in a pinch of red pepper flakes or a little diced jarred hot pepper with the onion for gentle warmth.
  • Tomato and olive: Fold in chopped sun-dried tomatoes and sliced kalamata olives for a briny, Mediterranean-leaning bite.

Storage & Leftovers

Store cooled stuffed peppers in an airtight container in the refrigerator, where they keep well for up to four days. Let them cool to room temperature before sealing so condensation does not collect and soften the filling.

To reheat, cover a pepper and warm it in a 350°F (175°C) oven until heated through, about 15 minutes, which keeps the pepper from turning watery. For a single portion the microwave is fine. Short rounds until it steams, and accept that the pepper will be softer than it was.

To get ahead, cook the salmon, quinoa, and filling a day in advance and keep the mixture chilled, then stuff and bake the peppers when you are ready. You can also assemble the peppers fully, refrigerate them raw and covered overnight, and add a few extra minutes in the oven straight from cold.

Notes & Tips

A few notes from my kitchen to help these come out tender, well-seasoned, and easy to pull together.
  • Pick sturdy peppers: Choose bell peppers that are broad and sit flat rather than tall and lopsided; a stable half holds its filling and bakes evenly instead of tipping over in the dish.
  • Use canned salmon in a pinch: Drained canned salmon works if you do not want to cook a fillet; flake it and pick out any large bones before folding it in.
  • Salt with a light hand: Feta and salmon are both salty, so taste the filling before adding all the salt and adjust from there rather than seasoning blind.
  • Dry the spinach: After the spinach wilts, let any liquid cook off before you combine everything; a dry filling keeps the peppers from getting soupy.
  • Judge doneness by the pepper: The filling is already cooked, so you are baking only to soften the pepper; a knife should slide into the side with little resistance.
  • Round out the plate: Serve with a simple green salad or a spoon of plain yogurt on the side to make it a fuller lunch.

Nutrition & Mindful Eating

Sweet roasted peppers, a soft quinoa filling and flakes of salmon make this eat like a full plate served in its own edible bowl, bright with lemon and salty with feta.
  • Salmon, quinoa and the pepper itself carry this dish together. The fish gives it richness, the quinoa gives the filling body and a little chew, and the pepper collapses into sweetness around them so every forkful has all three.
  • Salmon flakes into soft rosy pieces that hold their shape in the filling, and it brings the long-chain omega-3 fats and the protein that make a stuffed pepper eat like lunch rather than a side.
  • Bell peppers turn sweeter and softer in the oven than they are raw, and their walls hold enough vitamin C to matter while they steam the filling from the outside in.
  • Feta melts into salty pockets and spinach wilts down into the quinoa, adding a mineral, green note along with the folate that rides in with it.
  • Garlic and onion soften in the oil first, and the lemon squeezed over at the end cuts through the feta and the oil so a rich filling still tastes bright.
  • As you eat, notice how the pepper gives way under the fork and how the lemon lifts the salt of the feta, and let the plate hold your attention long enough to feel when you have had enough.

Frequently Asked Questions

Can I use a color other than red bell peppers?

Yes. Orange and yellow peppers are just as sweet and bake up tender, while green peppers are firmer and more bitter, so they may need a few extra minutes in the oven.

My filling turned out watery. What happened?

That usually comes from spinach that still held moisture. Cook the spinach until it is fully wilted and any liquid has evaporated, and drain the quinoa well before folding everything together.

Can I make these without cheese?

Yes. The peppers still hold together and taste good without feta; you may want a little extra lemon juice or a pinch more salt to make up for the tang and saltiness it would have added.

How do I keep the peppers from tipping over while they bake?

Tuck the halves snugly against one another in the baking dish so they brace each other, and trim a thin sliver off any rounded bottom so the pepper sits flat.