Restaurants for someone sensitive to excessive stimuli

I'm new to the Tacoma area and I love going out to eat but my partner is easily overwhelmed by loud places with lots of people and movement. Add in lots of noise and unusual smells and it can become too much for them very quickly. I'm trying to find places around us where they might be more comfortable eating, places that are smaller and not as noisy, maybe with separated eating areas that can help limit the amount of external stimuli they experience. Can anyone offer good suggestions?

EDIT: Thanks so much for all the great suggestions! Looks like we have a lot of good restaurants to try out!