Italian Fish and Vegetable Stew
Peer reviewed by UK recipe editorsAuthored by UK recipe editorsOriginally published 16 Jan 2026
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This Italian fish and vegetable stew is a vibrant, Mediterranean-inspired dish that prioritises fresh flavours and balanced nutrition. Combining firm white fish like cod or halibut with sun-ripened cherry tomatoes, peppers, and courgettes, the stew is lightly infused with a tangy lemon and mustard dressing. Served over a bed of creamy polenta, it offers a satisfying contrast of textures that feels both light and deeply comforting.
As a brilliant option for a healthy weekday dinner, this recipe provides an excellent source of lean protein and essential vitamins. The use of fresh herbs like basil and oregano adds an authentic aromatic finish without the need for heavy sauces. It is a wonderful choice for those seeking a wholesome, gluten-free meal that the whole family can enjoy.
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Ingredients for Italian Fish and Vegetable Stew
450g firm white skinless fish fillets (such as mahi-mahi, cod, or halibut), cut into 2" pieces
Kosher salt, freshly ground pepper
1 tablespoon fresh lemon juice
1 tablespoon red wine vinegar
1/2 teaspoons Dijon mustard
45ml extra-virgin olive oil, divided
240ml dry or instant polenta (coarse cornmeal)
1 garlic clove, smashed
1 medium yellow pepper, seeds and ribs removed, cut into 2" pieces
1 medium courgette, cut into 2" pieces
575ml cherry or grape tomatoes, halved
1 tablespoon slivered fresh basil (or 1 teaspoon dried), plus whole leaves for serving
1 teaspoon chopped fresh oregano (or 1/2 teaspoons dried), plus whole leaves for serving
How to make Italian Fish and Vegetable Stew
Season fish with salt and pepper. Whisk lemon juice, vinegar, mustard, and 2 tablespoons oil in a medium bowl. Add fish, toss to coat, and chill until ready to use.
Cook polenta according to package directions.
Meanwhile, heat remaining 1 tablespoon oil in a large skillet over medium-high. Cook garlic, stirring occasionally, until beginning to brown, about 2 minutes. Transfer garlic to a plate.
Cook pepper in same skillet, stirring frequently, until beginning to brown and soften, about 3 minutes. Add courgette, cover, and cook 3 minutes.
Reduce heat to medium-low. Add tomatoes, garlic, fish and dressing, 1 tablespoon slivered basil, and 1 teaspoon chopped oregano; season with salt and pepper. Cover and simmer just until fish is cooked through, about 5 minutes. Discard garlic, if desired.
Divide polenta among bowls. Arrange fish mixture over. Garnish with basil and oregano.
Clause de non-responsabilité
While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.
Historique de l'article
Les informations contenues dans cette page ont été évaluées par des cliniciens qualifiés.
16 janvier 2026 | Publié à l'origine
Auteur: :
UK recipe editors
Examiné par des pairs
UK recipe editors

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