How do I read data from the ECS to display on UI objects.

I'm making a resource bar at the top of the screen to display counts of different types of resources. I have a resource singleton component that has the data but I'm not sure of the best way to read this data from the monobehaviour script of my UI object. Right now in my resources system I'm setting the resources singleton entity as a static variable. Once I've done that I'm just finding the entitymanager and using GetComponentData from the static resource singleton entity in every update in the monobehaviour. This doesn't seem like the best way to do this.

 

I actually just realized that a hybrid game object entity would achieve all of this perfectly, but I can't use a singleton component for it, which I suppose is fine. I'd still love anyone's input on this.

 

Maybe you could have dirty flag and later on update everything that is dirty...?

I'm also in a need of good UI - ECS data binding way...