I'm from France (north Picardie), and I've been leaving in US for the last 10 years.
What I have been missing the most are : 1- Good Cheese (non pasteurized milk !), 2- Foie Gras (sorry, but yes), 3- Nice french Baguette, 4- Good / Affordable wine ! (we can find now...).
Share a good bottle of Wine with some friends with a great meal (Cheese / Salad / French dry Sausage / Good Pate)..."La Belle Vie !"