Start by preping you're ingredients

Start with onion then add tomatoes and wait till they're cooked

Now add veggies and fry for 10 min

After its done,remove the fried veggies and set aside

Fry the potatoes separetly for 20 min then add the veggies to the potatoes and cook for 10 min...you don't need to overcook the veggies

Serve with you're boiled or fried rice and enjoy...