Peel and dice the onion, then fry until softened. Chop the garlic and apple and add along with sage
Step 2
Cook for a minute, then pour in the vegetable stock and add the drained butterbeans
Step 3
Pan fry the sausages until browned all over, then add to the stew. Cover with foil and simmer for 15 minutes
Step 4
Stir in the spinach, mustard and crème fraiche. Simmer for a little longer, then grate and stir in the parmesan. Taste and add salt and pepper to taste, then add the lemon zest and juice. Serve and enjoy!