I had just left the market with an pack of chow chow. This green vegetable, resembled potato like in texture. I wanted to try it differently other than usual poriyal or kootu, which is why I called my aunt. She told me that chow chow, radhish, carrot and potato are few vegetables that can pair excellently with mutton curry. Even those who don't like veggies and prefer mutton alone, will find this curry delecious since the chow chow absorbs the flavour of mutton and portrays as same. You can add green chillies to the masala paste instead of chilly powder, but, since we had an toddler, I sticked with latter option.
Yes, and I made the curry along with mutton and its liver. Mutton liver or thilli is an excellant source of iron, and moreover they dominated the entire flavour and we all nourished the same. This curry goes great with rice/idly or dosa. I hope you try the same and let us know.