- 3 Weet-Bix, finely crushed
- 1 cup unsweetened Greek yoghurt
- 1 tbs olive oil
- 2 tbs water
- 1 3⁄4 cups white self- raising flour, plus extra for dusting
- Pinch salt
- 1⁄4 cup tomato puree or pasta sauce
- 1 cup baby spinach leaves
- 4 button mushrooms
- 1⁄2 tsp dried Italian herbs thinly sliced
- 1⁄2 cup grated mozzarella