Ingredients 

• Bread - 4 slices
• Onion - 1/2 small, chopped
• Celery - 1/2 stick, chopped
• Mushrooms - 3 medium, chopped
• Olives - 5 pitted, halved
• Capsicum - 1/4 small, chopped
• Garlic powder - 1/2 tsp
• Salt - to taste
• Tomato ketchup - 2 tblsp
• Mustard sauce - 1 tsp
• Italian Seasoning - 1/2 tsp
• Shredded cheese - 1/2 cup

• Heat oven to 400 F. 
• Saute all the vegetables on medium heat for 5 mins. Add salt and garlic powder. 
• Grease pizza pan. Place the four bread-slices on it. 
• Mix the tomato-ketchup, mustard and Italian Seasoning and spread on the slices. 
• Spread the sauted vegetables evenly. 
• Spread the shredded cheese evenly on top. 
• Place the pan inside the hot oven and cook till the cheese melts.