First of all to cook pasta bring a pot full of water to rolling boil. Add raw pasta and cook al dente. Drain and keep covered.

Heat olive oil in a pan. Add chili flakes and cook for few seconds. Next add chopped onions and saute for a minute.

Then add chopped vegetables and saute for 3-4 minutes.

Add pasta sauce or tomato sauce, sugar, dried herbs and salt. Mix well and cook for 5-6 minutes.

Now add the cooked pasta and toss well.

Finally add grated cheese and mix well. Serve veg pasta hot.