My eldest is having a woodland party over lunchtime and I'm veering towards doing packed lunches for kids as a buffet is going to take up loads of space under the cover if it drizzles/rains....BUT...how do you go about this? I'm hesitant to add lunch choices to the invite as it's already a bit busy. Do I wait until people rsvp and then ask them individually? Is there anything I can do to reduce the admin?