Boil 1.5 litres of water on a high flame. When water is boiling add washed pearl barley; lower the flame and then keep boiling for 20 more minutes.
Wash and peal the carrot and cut it into strips. Peal and chop the onions. Wash and dry the bell pepper with a paper towel. Cut it in half and remove stalk with seeds and edible part cut into strips too. Wash and cut the cauliflower and mushrooms.
Heat a frying pan on a medium flame with oil. When it’s hot, start frying the carrot for 3 minutes and then add chopped onion, cauliflower, mushrooms and bell pepper season with turmeric and sweet paprika and keep on frying for 5 more minutes on a low flame.
Pour our fried veggies into the pot with boiling pearl barley and then add salt and pepper and boil on high flame for 5 minutes.
Then add canned corn and chopped parsley. Cover with a lid, lower the flame and let it cook for few more minutes.
Try it out. Let me know in comments about your experience.