Lite Gravy

Spray a non stick frypan with veggie spray, add the mushrooms and onions; cook, stirring until mushrooms and onions are soft, about 5 minutes.

In the meantime, whisk together in a bowl, the yoghurt, Worccestershire sauce, pepper and half of the milk; pour mixture into frypan while stirring; bring to simmer, simmer 5 minutes.

Make a slurry of the remaining milk and the cornstarch; add to the frypan, whisking together with the other contents. Bring to boil until slightly thickened.

Serve hot.

(If cooking hamburger patties, cook them first , remove and keep hot, use the same frypan to make the gravy.).