Heat a pan and dry roast oats for 2 minutes. Keep stirring with a spoon.
Once done remove it from pan and place it on a dry clean plate.
Next, heat oil in a pan or wok.
Add mustard seeds, cumin seeds and let it splutter.
Then add in curry leaves and ginger and green chilies to the pan. (you can also add some lentils like urad dal & chana dal to give authentic upma flavor. But I have not added them here.)
Now add all chopped veggies and saute for 3 - 4 minutes on medium flame.
Stir occasionally and cover with a lid to fasten the process.
Now add water, salt to taste and bring it to a boil.
Next, add roasted oats stirring continuously.
Let it simmer till oats are cooked completely and soak up all liquid. It will take 3 - 5 minutes.
Add in a dash of lemon juice and some chopped coriander leaves. Give a nice stir.
Turn off heat and cover with a lid for 2 - 3 minutes before serving.
Serve hot with any ketchup or sauce.
Make a cup of green tea (for weight loss) or regular ginger tea.