Finely dice the onion, garlic and ginger
Cube up the potato, zucchini and carrot into equal sized pieces. Remove the corn from the corn cob. If preparing veg for BLW you can cut some vegetables into suitable blw shapes to help make them easier to grasp.
Add the coconut oil to a large pot over a medium heat and pour in the mustard seeds. Once they begin to pop, add in the onion, garlic and ginger and fry for 5 minutes, mixing frequently
Next add in all of the ground spices and cook for a further 2-3 minutes
Add in the potatoes and carrots and cook for 5 minutes, stirring frequently
Add in the zucchini, corn, tomato passata and water or bone broth. Bring up to a gentle simmer and allow to simmer until the vegetables are just about cooked
Pour in the coconut cream and place in the fish fillets, cut into two-finger-width slices. Continue cooking over a medium heat until the vegetables and the fish are cooked all the way through. This should take another 5 minutes or so. Season with salt and pepper to taste and serve with cooked rice