No, you cannot see the Magic Kingdom fireworks from inside the Be Our Guest Restaurant. The restaurant is themed as Beast’s Castle and is located deep within a "mountain" in Fantasyland; it is an entirely enclosed, windowless environment (with the exception of the "snowing" windows in the Ballroom, which are actually digital projections/effects). The immersive experience is designed to make you feel like you are inside a castle at night, regardless of the time outside. Furthermore, because Be Our Guest is located directly behind the castle in an area that is often part of the "fireworks fallout zone," certain outdoor walkways near the restaurant are actually cleared or blocked off by Cast Members shortly before the show starts for safety reasons. If your goal is to see the Happily Ever After show, you should finish your meal at least 45 minutes before showtime and head toward the front of Cinderella Castle or the Hub for the best view of the projections and pyrotechnics.