1.Even if you buy washed & ready to use pack, I recommend washing it once to discard any rotten leaves.
2.Big onion can be replaced by 5 to 6 small onions.
3.Do not cook covered as spinach loses its nutrients. Also, do not cook for longer time.
4.Once cooked, leaving spinach in the hot pan will make it lose nutrients. So, immediately transfer to a serving bowl.
5.Add salt after spinach is cooked as spinach reduces in volume and requires only less salt.