Crustless Quiche

This quiche makes it own crust. It is quick and easy to make, and is delicious hot or cold served with crusty bread and a green salad.

Ingredients:

4 eggs
1 cup (250ml) skim milk
1 cup (250g) full-cream natural yoghurt
2 tablespoons wholemeal flour
1 cup (250g) ricotta cheese
½ cup (50g) chopped spring onions
120g (4oz) mushrooms, sliced
1 medium tomato, diced
oil
330g (12oz) can asparagus, drained