60 years ago, my folks raised nine kids doing that. It took two large gardens, an orchard and all nine kids helping.
The food was good but I suspect these days no one (especially the children) will want to work that hard.
We didn't have a freezer so food was dried, cold storage or canned.
And as Farmer Dill commented on the food being monotonous, it was and it wasn't always what everyone liked.
Good luck with your effort. Please keep us posted.