Heat oil in pan. Once hot add mustard seeds and let it splutter.
Add the onion and curry leaves once the seeds crackle. Saute till the onion looks translucent.
Once the onion is translucent, add the chopped cabbage.
Add in salt, turmeric, red chilli powder and coriander powder. Mix to combine, make sure all the cabbage is coated with the spices.
Next add in the peas and mix.
Cover and cook on medium heat till the cabbage is soft, around 5-6 minutes.
Sprinkle chat masala/garam masala on top and add in the lemon juice (optional). Mix till well combined.
Serve hot with Indian breads like roti or paratha.
* Sprinkling chat masala or garam masala in the end is optional but it definitely adds to the flavor. I prefer chat masala in this recipe.* Whenever you are cooking with mustard seeds - let them crackle first and only then add the next ingredients. If you do not let them crackle they will impart a bitter taste to your recipe.* I chopped the cabbage finely as you can see in the picture. I used a medium sized cabbage and had around 5 cups of finely chopped cabbage.* If you are not fond of mustard seeds, you can use cumin seeds in place or add 1/4 teaspoon mustard seeds and 1/4 teaspoon cumin seeds.* Adding lemon juice is optional, skip if you don't like tanginess in your veggies.