1Preheat the oven to 200°C (400°F) Fan. Finely dice mushrooms and onions and add them to a baking tray lined with baking paper. Lightly drizzle or spray with olive oil and mix to combine. Spread in a single layer.

2Roast in the oven for 10 minutes. Stir with a spatula, then roast for another 10 minutes.

3In the meantime, make the batter. Add oat flour (or ground oats), baking powder, salt and spices to a mixing bowl.

4Whisk to combine. Make a well in the flour and add milk.

5Fold in using a spatula until incorporated. Set aside until your mushrooms are cooked. Cut the spring onions in the meantime.

6Once the mushrooms and the onions are cooked, add them to the batter. Add spring onions.

7Mix to combine using a spoon or a spatula.

8Reline the baking tray with baking paper. Pour the mushroom batter onto the tray and spread it out.

9Bake in the middle of the oven for 20 minutes.

10Cut into 4 slices using a knife or a pair of scissors.

11Transfer to plates. Serve with yogurt mayo on the side.