We went to Quebec City in September.
An awful lot of tourist-fare.
here's what people have posted as being great and ones that we also thought good enough to recommend:
Le Saint Amour
Le Café Du Clocher Penché
Toast (mixed reviews)
Cafe Brest (we had lunch there. Excellent).
Bistro tatum (for coffee, pastries)
I hope you post your experiences. I particularly urge you to discuss L'Utopie because we loved it but I didn't remember enough to describe the food properly!