Nibblous | cook in curry sauce

Ingredients

• 5 tablespoons vegetable oil
• 2 teaspoons mustard seeds
• 1 teaspoon fenugreek seeds
• 3 fresh green chillis, seeds removed and thinly sliced
• handful of curry leaves, ripped into small pieces
• 2 thumb-sized pieces ginger
• 3 onions, peeled and chopped
• 6 tomatoes, chopped
• 1 teaspoon turmeric
• 1 teaspoon chilli powder
• 1 or 2 wineglasses water (about 10 ounces)
• 14 fluid ounces (400 millilitre) can coconut milk
• salt
• 4 (8-ounce/225 gram) haddock fillets, skinned and pin-boned
• 1 knob (1 tablespoon) tamarind paste or 1 teaspoon tamarind syrup
• a very large handful baby spinach, optional
• 4 chicken breasts, sliced into 1/2-inch (1 centimetre) strips
• a few cashew nuts, toasted and crushed
• 1 3/4 pounds (800 grams) mixed vegetables, chopped (potatoes, zucchini, peppers, onions, sweet potatoes, spinach, chard, cauliflower, lentils, beans)