Paris avec la famille

I’m traveling to Paris in April with family – two teenagers and my mother-in-law, as well as my wife and me. Looking for recommendations for family dining in the evenings. We are interested in good food and wine and are not averse to spending some money, but are not looking for anything highly formal or over the top, and we’d like places where we’ll feel comfortable with our mixed-age group. Plus maybe one place for a romantic dinner for just the two of us. I saw this thread from October and it looks as though some of the bistros mentioned there might be appropriate for us. What does everyone think?

– Matt