Interesting.  The two dishes look similar, what is the difference between the two (lahana sarma & Zucchini filling)?

Yes, sarma is hard to make so we often make it more like a casserole, or as we say in the Midwest, hotdish.  😁  

 Not much difference between them but cabbage sarma is often eaten cold but for zucchini you can't do that. That is because meat inside cabbage is boiled so it is much softer than zucchini 

 Nice to know.  I have not tried cabbage sarma cold, but I might have to try that next time.  

Thanks for sharing this information with me.