walkinwood, we spend on average (over the last 3 months since I've been tracking again) about $3/day per person/dog just for groceries (he weighs over 100 pounds, and eats more than I do). This is for a 44 y.o. female, 21 y.o. 6'1" male and a 9 y.o. very energetic boy. For eating out, we spend just under $100/month (or I do, I don't know what the 21 y.o. does).
This last week, our menu was:
Breakfast - the 2 adults don't eat breakfast - the 9 year old has a glass of milk, an orange and a cheese string
Lunch - leftover turkey sandwiches (turkey was $.99/lb at Christmas, I bought two) - about 2 meals; split pea soup (I bought a 10 lb bag some time ago) with ham and carrots and onions (I add blended cauliflower but don't tell my kids) - about 2 meals; grilled cheese sandwiches (cheese bought on sale at $2/24 slices) with snap peas (bought at 50% off - $4/bag) - 2 meals; baked potatoes with bacon, broccoli and cheese - 1 meal
Supper - spaghetti made with extra lean hamburger (30% off), 1 can of spaghetti sauce (on sale at $1.25), with 2 tomatoes (50% off) added - made about 3 meals; basa (2 lb bag on sale for $5/bag), tomatoes (50% off) and snap peas (50% off) - about 2 meals; chicken breasts ($4/kg so about $2/lb) with butter and cornflake coating (skin and all), mashed potatoes and frozen corn / frozen mixed veggies - 2 meals
Add about 3 servings of fruit per person per day, more for the kid, but I have a hard time paying over $1.29/lb unless it's pomegranates or cherries. I just shop very seasonally, like right now it's pretty much bananas, clementines/mandarins (got them at 3 lbs/$1.50) and apples.
The dog eats somewhat the same as we do as he will literally starve himself holding out for the people food. About once every 2 weeks, I buy a bag of frozen pork meat/bones for him for $10 for 10 pounds.
We don't drink a lot of pop, the kids drink milk (~$3.80/4L jug), I drink tea, coffee or water. And we usually have a jug of iced tea in the fridge in the summer.
I don't eat a whole lot of starchy foods (definitely not the 10 servings or whatever recommended on the food pyramid), but we probably eat a bit higher fat than the average person, we just watch the portion sizes. Or I do anyway, the boys don't seem to have to.
Other than that, I just really watch the sales and don't eat a lot of processed stuff, more because I don't like the taste of chemicals than any other reason. For example, there were beef steaks and pork tenderloin on sale at Christmas time at 1/2 off and I bought a ton of it and threw it in the freezer. Same thing with tomatoes, bananas or similar. I'll buy them on sale and throw them straight in the freezer and use them in recipes. When I bake, I'll often use home made apple sauce or zucchini in place of part or all of the oil in a recipe.
I don't think that if you looked at the receipts of someone who shops the way you would do if you wanted to maximize your savings would be very educational as to what they would eat on a weekly basis. I think those people (like me) shop in a very lop-sided way because they're often choosing stuff that's on for a good price, so one week could have no meat because nothing was on for a good price, the next week would have tons of meat and (like me last week) $30 worth of Christmas candy on sale.