4 Portobello mushrooms, stems removed and finely chopped
2 garlic cloves, finely chopped
squeeze lemon juice, optional
½ onion, finely chopped
100²µ/3½´Ç³ú roasted red peppers (from a jar) drained and roughly chopped
200g/7oz spinach
salt and freshly ground black pepper
2 tbsp olive oil
50²µ/1¾´Ç³ú cheddar, grated
100²µ/3½´Ç³ú goats' cheese or other creamy cheese