Hi. I too, wish you good luck.
We started the year out spending $800-900/mth CAD on groceries for 3 adults. Our boarder went back to her country of origin to visit family for 3 months, and I decided to haul in the grocery budget. We are down to $300/mth. for 2 adults. And we eat organic fruits and veggies, hormone and antibiotic free meat. I decided when the boarder comes back she'll be in for a few surprises. We won't be treating her quite as much.
I wish you good luck.
We spend about $1000 on food as well. Groceries have gotten significantly more expensive over the past five years. I would start with really small changes and implement those. Taking coffee to work is a GREAT start.
What helps me is the health factor. It is so much better for you to cook at home. What I do is start with a menu for the week and make sure all of the ingredients are on hand.