I tried an experiment today and it turned out delicious so I thought I would share it. It feeds one but could, I'm sure, be scaled up.
Grease a ramekin or small oven dish. Add a layer of sliced mushrooms. Spoon over enough good quality tomato sauce (for pasta) to cover the mushrooms. Put in a preheated oven at 180 degrees C for 10 minutes.
Then break an egg over the mixture. Top with a generous spoonful of Greek yoghurt. Grind some pepper over it. Pop back in the oven for another 10 minutes.
Serve with pasta (which you have time to cook while the rest is cooking). Quick, light, easy and very tasty!