Method for White Sauce :

Melt butter in a non-stick pan and fry the flour until it gets a light pink color.

Add milk and stir continuously in a low flame until your sauce becomes really thick just like the batter u prepare for "pakoda".

White sauce is ready. Add salt and pepper to taste and remove from the gas flame.

Place the sauce in another container and keep aside.

Method for Cake :

Put all the vegetables (except potatoes) in the same frying pan , the one you used to make white sauce.

Add tomato and chili sauce to it. Place the pan on fire.

Add mashed potatoes and mix all these on a high flame. You have to put the pan on fire only until the water of all vegetables get dried but remember, vegetables should be crunchy enough.

Add a very little salt as both of the sauces have enough salt.

Take a greased baking dish. First layer with 1/2 of sliced potatoes then the  prepared vegetables.

Again arrange with the left sliced potatoes.

Cover with white sauce. Sprinkle fresh bread crumbs to cover it.

Pat the crumbs very lightly with hand.

Bake or microwave on high just until the edges become golden brown. It takes almost 8-10 minutes.

Serve hot.