The Woodman Lodge in downtown Snoqualmie (behind the Railroad Museum) would be a good choice for dinner. The food and service are good and you could really splurge for half what the dinner at Salish will cost you.
Another choice for good food in a casual setting is the new Fall City Roadhouse. It’s only 5 or 10 minutes from the lodge at the intersection of Highway 203 and Highway 202.
Don’t forget to walk to the waterfall lookout at different times of day, it’s awesome.