My favourite restaurant in Scottsdale is Los Olivos (recommended by a local we asked on the street, and it did not disappoint. Have eaten there 4 times!). https://losolivosrestaurants.com/
Sights and activities I've enjoyed in and around Scottsdale:
-wandering around Old Town and browsing in the shops
-visiting the Frank Lloyd Wright House, Taliesin West, on the outskirts of Scottsdale
-visiting the Desert Botanical Garden in Phoenix
-visiting the Hole in Rock at Papago Park, near the botanical gardens
-visiting the Heard Museum in Phoenix
-taking a day trip to Sedona (although the following year, I went to Sedona for a few days, because a day trip didn't do it justice)
-visiting Arcosanti, an alternative, experimental community not far from Scottsdale