Heat butter in a pan, add onions and sauté till translucent.

Step 2 Add capsicums, tomatoes, mushrooms, salt and sugar and sauté for three to four minutes.

Step 3 Spread the pizza sauce on each bread slice and place the vegetable mixture over it.

Step 4 Top up with grated cheese and place the slices on a hot Tawa and cook until the cheese melts.

Step 5 Cut into diagonals and serve hot with tomato ketchup