Heat oil in a pan. Add onion, saute it till they are translucent.
Next add garlic and saute until it's slightly cooked.
Now add wheat flour and roast the flour a bit.
Gradually add milk to the pan and mix well.
Next add mushrooms, black pepper, salt and parsley. Stir and combine for a min.
Toast the bread slice and using spoon spread the mushroom mixture on all the breads evenly.
Garnish with some more parsley and serve hot.
