Great gourmet pizza in Harvard Square (there is also a location near Fenway/Kenmore) -- dim lighting makes it a little more intimate than other pizza spots. They have a pretty good selection of wines too.
I think Tasca is a great place for a first or second date. Nice atmosphere that isn't too dark and romantic, but is still a nice intimate atmosphere. The food is very conducive to sharing and they have great Sangria. I think it's definitely a better first-date atmosphere than Tasca and probably Tapeo.
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