We usually spend over $200 a week. That also includes household items, diapers (pull ups) and gasoline.
I have been very frustrated at how much $ is being spent even with my meal planning.

I'm working on finding even cheaper meals, but I'm very concerned about nutrition as well. There has to be a balance between eating for less and eating healthy (ie lots of fresh vegetables, whole grains, etc).
One hole I have found is baked goods. I often buy bread out of convenience and it's usually around $4 a loaf. That's like $80-100 a month in JUST bread. Crazy. What works for me is to use the bread machine for the kneading and rising then I put it in a regular bread pan, let it rise and bake it.
Now to just DO it regularly.
I'd also like to start making tortillas and growing a container garden.