Skip to main content

3-Ingredient Red Snapper With Green Sauce and Spring onions

This vibrant red snapper with green sauce and spring onions is a wonderful example of how high-quality ingredients can create a sophisticated meal with very little effort. By using a vegetable-only green juice as a ready-made poaching liquid, you infuse the delicate white fish with a clean, herbaceous flavour while keeping the dish light and refreshing. It is a fantastic option for a quick summer dinner when you want something nourishing that looks beautiful on the plate.

As a diabetes-friendly main course, this recipe focuses on healthy fats from olive oil and lean protein from the snapper. The charring of the spring onions adds a lovely smoky depth that perfectly complements the crisp skin of the fish. Serve this in shallow bowls to make the most of the savoury green broth, perhaps alongside some steamed seasonal greens or cauliflower rice for a complete, low-carbohydrate meal.

Continue reading below

Ingredients for 3-Ingredient Red Snapper With Green Sauce and Spring onions

  • 45ml olive oil, divided, plus more

  • 2 bunches spring onions

  • Kosher salt

  • 4 (170g) skin-on red snapper or any mild white fish fillets

  • 180ml cold-pressed, vegetable-only green juice

Heat 1 tablespoon oil in a medium skillet over medium-high. Add spring onions, season with salt, and cook, turning occasionally, until spring onions are charred in spots and slightly softened, about 1 minute. Transfer to a plate. Wipe out skillet.

Heat 2 tablespoons oil in same skillet over medium-high. Season fish with salt and cook, skin side down, until very crisp, about 4 minutes. Flip fish, add green juice and spring onions, and cook until fish is just cooked through, about 2 minutes more. Taste and season with salt, if needed.

Divide fish and spring onions among bowls; top with green sauce. Drizzle with oil and serve.

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.

  • 28 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
flu eligibility checker

Ask, share, connect.

Browse discussions, ask questions, and share experiences across hundreds of health topics.

symptom checker

Feeling unwell?

Assess your symptoms online for free

Sign up to the Patient newsletter

Your weekly dose of clear, trustworthy health advice - written to help you feel informed, confident and in control.

Please enter a valid email address

By subscribing you accept our Privacy Policy. You can unsubscribe at any time. We never sell your data.