Mix flour with tomato puree and keep aside, heat butter in a wok add crushed ginger garlic, cook for 1 minute, add capsicum rings and onion rings, toss for 1 minute and remove, add in crushed red chilies alt, tomato puree, baked beans, fold in boiled macaroni.
Add ketchup, spread mixture in a greased baking dish, topped with onion and capsicum rings, spread with grated cheese, dot with 1 tbsp butter, bake for 15 minutes on 180 degree C.