Sausage kale minestrone

Name: Sausage & kale minestrone
Ingredients: 1 tbsp vegetable oil; 1 red onion, finely chopped; 3 sausages, skins removed; 2 garlic cloves, finely grated; ½-1 red chilli, depending on how much heat you prefer, sliced; ½ large head of broccoli, finely chopped; 2 courgettes, sliced into half-moons; 200g small pasta (we used ditalini); 1½ litres chicken stock, made with low-salt chicken stock cube; 200g curly kale or cavolo nero, stalks removed, roughly chopped; 1 lemon, zested and juiced; 20g parmesan, shaved