Ottawa restaurant gift certificate for wedding
I haven't been but I know from my Ottawa connections that those are all good suggestions. You'll find their websites within the place links below.
108 Murray St, Ottawa, ON K1N5M6, CA
85 Murray St, Ottawa, ON K1N5M5, CA
226 Nepean St, Ottawa, ON K2P0B8, CA
For serious foodies, Beckta is the best option in Ottawa. Depending on your budget, you may wish to consider getting a cert. for the the tasting menu. I've recently received this and am really keen to try it.
If you want to do something a little unusual (and perhaps they have done Beckta a few times), perhaps Sweetgrass Aboriginal Bistro. Domus is also highly reccomended.
All places have internet sites.