Take a bowl and add oats ,semolina and gram flour and mix.
Now add yogurt and water and make a medium thick batter like idli batter and keep covered for 15 minutes
Then blend the mixture either with a whisk or fork or use a hand blender
Add all the spices and the vegetables and mix.(check notes),add eno just before making the cheela.
Heat a non stick or iron tawa and grease with few drops of cooking oil or ghee.
Spread a ladle full of batter on the medium hot tawa and spread it gently with the back of the ladle to make a slight thin pancake.
let it cook on medium to low heat,when the top looked dry then drizzle a tsp of oil or butter around the chilla and let it cook till it the base become golden
Now flip it over gently and cook from other side,drizzle some oil around the edges so it get cooked from both the sides.
When chilla uttapam become golden from both the sides then remove from the pan and serve hot.
Serving suggestions- serve with mint chutney,tomato ketchup or any tangy sauce of your choice.