Upgrade my tuna burger

I made this tuna and bacon burger: https://sitkaseafoodmarket.com/blogs/recipes/bacon-tuna-burgers

But I did not really like it. Mostly is was the texture which maybe I ground too much. But it also lacked flavor.

I have 2 cooked burgers left. Ideas on how I can improve these cooked burgers? I wondered about roughly chopping them and using that as a base for a tuna salad.

Other suggestions?

TIA