$100 per week food shop challenge for our family

We are doing a challenge which will hopefully get us motivated with using the food we have in our garden. As well as save some money, and think more carefully about what we eat.
This $100 is to cover food, not non-food items (like toothpaste, toiletries, pet food etc)
We also aim to shop only once a week. And when we have done our shop, share here how we have done. Meat and milk will be the hardest.
Today is Monday and have finish our menu plan. So will be going to the shops soon to get what we need. Shopping with cash only. As we menu planned around what we have already, our shop will be about getting only what we need for the coming week. Then making it last.

Share more soon.