Chop Vegetables in small pieces , heat oil in a pan , saute vegetables and cook for 5-10 mins or till the vegetables are cooked. keep aside
Heat oil in a pan add Mustard seeds, when the crackle add curry leaves.
Add water, when it boils add oats, semolina , vegetables and keep mixing till water dries and the oats are cooked. If the Upma turns very dry, add little bit of water to bring it to a consistency that you prefer