Make the flax egg by mixing the ground flax and water in a bowl–set aside to thicken.
Add all the dry ingredients to a large bowl and mix to combine. Then add in the oil, almond milk and flax egg. Mix throughly to form a dough. Set aside
To make the cashew filling
Add all the ingredients to a food processor or high-speed blender and blitz until smooth.
To make the pesto
Add all the ingredients to a food processor or high-speed blender and blitz until you get a chunky paste.
To compile
Divide the dough into four, then roll each out into discs.
Transfer the dough discs onto the baking tray, then spoon cashew cheese mix onto each base (just into the middle–leave at least an inch around the edge).
Now top the cashew cheese with the pesto, dividing on to the four discs.
Next top with the sliced cherry tomatoes.
Pull up the sides around the filling and pinch the dough a little to secure.
Bake for 20 minutes on Gas Mark 4/180. Remove from the oven to cool a little.
Top with olive oil, Basil, salt and chilli flakes.