Step 1

In a large pot heat up the oil, add the garlic, ginger, chilli and onion, and gently cook for 2-3 minutes stirring occasionally.

Step 2

Add the lentils, stir and cook for 2 more minutes.

Step 3

Add the tomatoes, coconut milk, tarragon and salt, stir, cover, bring to the boil, then simmer for 15 minutes, stirring often (don't let the lentils stick to the bottom of the pot).

Step 4

Add the fish, stir carefully, cover and cook for 2 minutes. Turn off the heat and leave to stand, covered, for about 3 more minutes. Serve with rice or quinoa (ensure the fish is cooked through).