Heat a little oil in a large pan and fry the sliced onion together with the sausages.
While they cook, dice the squash and red pepper.
When the sausages are browned and the onions have softened, add the garlic and chilli. Cook for 1 minute.
Stir in the oregano, cumin seeds, smoked paprika, tomato purée, squash and pepper pieces. Coat everything in the spices.
Add the chopped tomatoes, bay leaf, crumbled stock cube, and enough water to just cover the ingredients.
Bring to a boil, cover with a lid, and simmer for 15 minutes.
Add the chickpeas and spinach or kale, and cook for a further 5 minutes, until the greens wilt and the sausage is fully cooked.
Season to taste and finish with chopped herbs.