Engage the Relief Society to promote food storage. The Brethren have counseled us to begin with one week of storage and build to a month. What does one month of food storage look like?
The R.S. presidency in the Pittsburgh North Stake answered that question. They created menus for a month of meals, translated the menus into a shopping list, and then wrote recipes for the meals they suggested. See their one-month overview, menu plan, recipes, blank menu plan, blank shopping plan, and blank weekly shopping list.
Your family may like different meals. Fine. But by making a month of menus and translating those meals into a shopping list you can make sure you will have food your family will enjoy eating as you rotate your home storage.
Your Relief Society may choose to modify the Pittsburgh North Stake's materials. No problem. But consider following their example and engaging your Relief Society to help families change the vague concept of a month's worth of food into a specific set of commodities that they are going to buy and put aside.