Mustard greens

Sarson Ka Saag

Measured purely by mass in grams

Instead of Mustard greens

Nothing entirely matches the distinctive sharp, pungent bitterness of fresh mustard greens in traditional saag.

Radish leaves
Use equal weight, washed and chopped coarsely. Offers a similar peppery, pungent bite when simmered down.
Spinach
Use equal weight, but add a pinch of mustard powder or ground mustard seed to mimic the sharp bitterness of mustard greens.