1 stick celery, finely chopped
1 garlic clove, crushed
1 very small onion (50g/1戮oz peeled weight), finely chopped
40g/1陆oz baby spinach
70g/2陆oz tinned drained brown or green lentils
1 tsp olive oil
1 medium free-range egg
100驳/3陆辞锄 smoked haddock, boneless, skinless