We have 2A3C and we spend on average $350-$400 a fortnight (thats including extra staples such as milk and bread throughout the fortnight). It varies depending on what needs to be bought.

I cook mostly from scratch. Meat, veg and milk are our biggest expenses. We eat alot of fruit which can get expensive. We buy alot of things ie healthcare and laundry products only once a month or less. One kid is toilet trained, one is in pull ups and one uses cloth 80% of the time. Alot of our meals are pretty basic and feature in our meal planning on a regular rotation.

We've been trying to curb our grocery bill so Ive really been pushing eating leftovers on nights Im at work or getting Dh to take it to work for lunch. We used to have a bad habit of leftovers being left to rot in the fridge which is so wasteful. Same goes for fresh produce, so now I buy only what I need and no more. When we move I definately am going to try my hand at planting a vegie garden.

Im glad you posted this thread, Ive gotten alot of idea's on budgeting from the replies, thankyou!