There’s fuckall along 101 from Port Angeles all along Hood Canal. Skip Hoodsport. It sucks.
That said, the Mexican food in Shelton, the burgers in Tacoma (if you take the Hood Canal bridge over to Hwy 3 and pay the Narrows bridge toll, saves you about an hour and is safer) are both crazy good. I highly recommend taking the Bremerton/Tacoma route rather than the slow winding shitshow that is US101. Just South of Tacoma is Lakewood which has the best Korean and Vietnamese cuisine North of Los Angeles.

Olympia is boring, lame and doesn’t have shit for decent anything.

Centralia has a decent Mexican place called La Tarasca. Chehalis has a place called The Shire that was started by a guy whom was fucked over by Portland-based McMenemin’s. Don’t waste any time or money at a McMenemin’s restaurant. The food and drinks both are super overpriced and shitty. They’re all over Portland.
Further South from Chehalis is a burger joint of the Vader exit called Mrs. Beesley’s. It’s actually decent, and full of the pictures of all the celebrities that have been there over the decades.
Longview has a decent seafood restaurant and great Mexican food. Asshole cops though.
South of Longview, you might as well punch through to Portland. There’s was good food in Vancouver, but it’s off the beaten path, and a pain in ass to get to and then get back to the freeway. I don’t know what survived the pandemic.
Hope that helps.