L'Auberge du 15 was delicious and very calm/clubby feeling. However, I got too full for me to consider it romantic. That lamb was to die for.

Thank you for all the suggestions so far. Definitely want it to be dinner as we will be arriving from Rome late morning that day.

Well, when I next go to Paris and I meet a handsome Duke of a certain age .. mine...and he wants to take me to a romantic dinner...I'll let him take me to Los Ombres...at the foot of the Eiffel tower. I haven't actually been to the Eiffel Tower..seen it twinkle...so this would be great. Actually, isn't Jules Verne and another restaurant (isn't a Ducasse, my memory is crap) IN the Eiffel Tower..might not be limited to $300...but to see Paris all lit up around you? er.. sounds pretty romantic to me.

mikster,
Can you tell us more about what you like, what's important to you and how far you're willing to travel?

People do rave about Les Ombres.

I think mikster might like to look at photos of these restaurants. Le Grand Cascade would tempt me. Jules Verne, too. I could probably do Jules Verne at night because I don't drink, but I'm not sure it could be done with wine at $300.

What about Lasserre? Can it fit the budget?

Just looked at the Lasserre menu. No way can it fit mikster's budget. Quelle cher!

I think some people think it romantic to look at a city while dining. But I don't think you could have a very good view of the Eiffel Tower twinkling from within it, Les Ombres is far enough way that you can see it, it isn't really right at the foot of the tower or you couldn't.

I don't think lunch is romantic either, but I don't really consider eating dinner to be romantic, in general. It can be very nice, and a pleasant experience, but I don't think eating is romantic.

I don't think Jules Verne is doable at that budget for dinner even without wine.

I loved the food at Kei but don't know if it would be considered romantic.

Thank you. It can be elegant and/or rustic in atmosphere if that helps and we'd like the service to be pleasant, unrushed and not stuffy.

Jules Verne was the most romantic restaurant at which we have ever eaten. It was incredibly romantic watching the lights come on in Paris. Having said that, I don't think it can be enjoyed for $300 at dinner - probably closer to $500 or $600 depending on your choice of wine. If you decide to splurge, make sure to reserve well in advance and require a table by the window. The other two Paris restaurants we thought were romantic are Le Maison Blanche and Le Train Bleu.