I know they say you can survive on much less calories than we usually eat. This is totally my opinion, but my kids are upset when dinner is 10 minutes late. I have three growing boys and food is really important to them. When it comes to planning food for three days, I am going to plan for meals, drinks, and snacks.
I have spent the last couple of weeks wandering around the grocery store and looking for fresh ideas for my family's 72 hour kit. I will list ideas just to get you thinking about possibilities. Families are so unique. Only you can decide what is in your kit. You can take your own family to the grocery store and look for inspiration. This list of food I included is not a meal plan, just ideas for food that could be used in your kits.
Food in 72 Hour Kits should meet certain requirements. Long Shelf Life