You can eat the entire sunflower plant, not just the seeds

Read more here:

https://greencitygrowers.com/diy/uses-of-sunflowers/

https://steemit.com/gardening/@haphazard-hstead/4-ways-to-eat-sunflower-buds-original-photos-and-recipes

https://foragerchef.com/how-to-cook-sunflowers-like-an-artichoke/

https://www.green-talk.com/experimenting-with-eating-sunflower-leaves/

related:

https://practicalselfreliance.com/