first, add oil and heat
Add mustard seeds and cumin seeds; splutter
Add green chilli and ginger; roast well
Add onion; roast till onion turns translucent
Add tomato; quick mix
Add chilli powder, garam masala, salt, and turmeric powder; mix well
Add carrot, capsicum, and cabbage; saute well
add ketchup and chaat masala; mix well and turn off the stove
Finally add coriander leaves; mix well
Toast bread golden brown with butter
Add masala; serve