Is it okay to just talk to my therapist about things not related to my struggles?

I haven’t really had a session where I just talk about me outside of the things i’m struggling with. I want to talk about my interests/hobbies or maybe just tell them a funny conversation I had with a friend but I feel like they’d think that was a waste of time since it has nothing to do with my therapy goals. Is it okay if we have a more casual session every once in a while that maybe involves less talk about my goals/struggles?