To make the dough, combine all ingredients in a large bowl and mix with your hands or an electric mixer, until a smooth dough forms.
Knead for 8-10 minutes, cover with cling film and allow to rest for one hour in a warm, dry place.
Preheat the oven to 200°C.
Sauté the mushrooms in a frying pan with some olive oil. Add the peppers and spinach and wilt until the excess water from the mushrooms has evaporated. Set aside to cool and then add Violife Original flavour grated, Violife Mozzarella flavour grated and Violife Creamy, mixing well. Add some thyme leaves, garlic powder, salt and pepper.
Use a fork or fold over the edges neatly, to secure the filling. Repeat with the remaining dough and filling.
Brush the calzones with olive oil, pierce with a fork and bake for about 20-35 minutes.