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Mediterranean Microwave Fish With Green Beans, Tomatoes, and Olives

This Mediterranean microwave fish is a vibrant and nutritious choice for a midweek meal when time is short but you still want a wholesome dinner. By gently steaming white fish fillets over a bed of fresh green beans, cherry tomatoes, and briny Kalamata olives, you create a sophisticated dish with minimal effort. The combination of garlic, thyme, and a splash of dry white wine builds a light, aromatic sauce that perfectly complements the delicate texture of the flounder or tilapia.

As a diabetes-friendly recipe, this dish is naturally low in carbohydrates and high in lean protein, making it an excellent addition to a balanced diet. The use of the microwave ensures the vegetables retain their crunch and the fish stays moist without the need for excessive fats. Serve this simple, one-dish wonder on its own for a light supper or with a small portion of wholemeal couscous to soak up the savoury juices.

Continue reading below

Ingredients for Mediterranean Microwave Fish With Green Beans, Tomatoes, and Olives

  • 230g green beans, trimmed

  • 275ml cherry tomatoes

  • 30g pitted Kalamata olives, thinly sliced (about 3 tablespoons )

  • 2 garlic cloves, very finely chopped

  • 2 tablespoons dry white wine

  • 1 tablespoon olive oil

  • 3/4 teaspoons kosher salt, divided

  • 1/4 teaspoons freshly ground black pepper, divided

  • 2 (170g) skinless flounder or tilapia fillets, 1/2 inch thick

  • 2 sprigs thyme

  • An 8x8-inch microwave-proof baking dish

How to make Mediterranean Microwave Fish With Green Beans, Tomatoes, and Olives

Toss green beans, tomatoes, olives, garlic, wine, oil, 1/4 teaspoons salt, and 1/8 teaspoons pepper in baking dish. Cover with plastic wrap, poke a small hole in the centre, and microwave on high 3 minutes. Remove from microwave, uncover, and stir.

Season fish on both sides with remaining 1/2 teaspoons salt and 1/8 teaspoons pepper, then arrange over green bean mixture in baking dish. Top each fillet with 2 thyme sprigs. Cover with plastic wrap and microwave on high 2 1/2 minutes. Check if fish is opaque; if not, continue microwaving at 20-second intervals. Remove from microwave and let sit, covered, 2 minutes.

Disclaimer

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.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 16 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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