30th Anniv dining advice...5th, 6th or 13th arr...
Staying near Av des Gobelins & Bd Saint-Marcel...cost (or location) is not a major factor, but spectacular food/ambiance is!
We've been told if you can see the Eiffel Tower, the food will likely suffer!...
No food allergies - he loves meat/she enjoys fish...any and all suggestions are deeply appreciated!
So, I forgot to congratulate you: 30 years? No French folk are married any more; none (except for gays) want to be; and it's nice to see someone married 22 years before we were.
I agree with Parnassien's recs, but also counter-intuitively, if you want to see the Eiffel Tower, without seeing that monstrosity, the Tour Montparnasse, you eat at the resto at its top, Le Ciel de Paris, rotating, but you won't get dizzy - which after its redo in Sep 7, 2012, I gave a 5/10 (food) 7/10 (view, prices and service).
Will this be where we celebrate our 55? I dunno. I only deal with foreign policy and taking out the garbage.
I have rented on 2 different occasions for a 2 month total at the intersection you mention and there is a very good restaurant a couple of blocks west of you on Rue de la Santé,"Auberge du 15", but for years I have done just what Parn. suggested. La Grande Cascade hits all my right notes for a celebration.
For any landmark celebration, I have a very short short-list: La Grande Cascade in the Bois de Boulogne and Le Grand Véfour in the Palais Royal. You can certainly get "more spectacular" food elsewhere but I don't find that the vibe at any of the eateries in the highest levels of the gastronomique stratosphere to be very celebratory... In fact, quite dulling.
Ambiance tends to be be far more important when there's something to celebrate.