This is harder than most people think. Most people think about a 2 week grocery bill and list at the most. True this would be just 9 days of dinners but once its listed and priced it has to be multiplied by 18.
Why 18 ? Because 18 x 9= 162 or 3 good meals per week for a year. The other 4 days have to be beans, rice, pasta, corn and flour based meals with broths ,creamed soups, sauces for flavorings. Even if she keeps these meals at 10.00 for 4 people it will be around 16 to 1700 $ about double what the other 4 days will cost.
You can't tell my wife it cost to much I have to show her . What I am after is 6 different meals to multiply by 9 for 54 meals of Sunday Dinner's . This will reduce cost to 540$ plus some extra dry goods.