Β½ lemon, zest only
200g/7oz frozen spinach, defrosted
400g tin chopped tomatoes
1 tsp caster sugar
ΒΌ tsp freshly ground nutmeg
Β½ tsp dried oregano
150²µ/5Β½΄Η³ϊ mozzarella ball
20²µ/ΒΎ΄Η³ϊ Parmesan (or a vegetarian hard cheese alternative), grated
250g/9oz ricotta
125g/4Β½oz dried cannelloni tubes