Canada doesn't have food stamps, but I've/we've lived on far less. As mentioned by others above, buying bulk and eating less meat really helps. I've actually never eaten Ramen and we don't eat boxed macaroni and cheese.
When the girls were little (they are 16 and 15 now) our family of 4 could eat for $50/week. If I think about what we did then, we could probably do it for under $100/week now. But it does take work and real cooking (no convenience/packaged foods). We did garden a bit back then (way more now) and froze the extra, plus canned things that we bought in season like fruit (peaches and pears, jams, pickles) as we do now.
Dry beans and rice do get boring, but if you vary the spices and side veggies you definitely get cheap good protein that way. Stir fry goes a long way with rice or noodles.
Grocery stores always have marked down meat, and we stocked up whenever we saw it/could afford it and put it in the freezer.
One of our local grocery stores (Superstore) always has a rack of cheap produce that is past its prime and much of it is fine cooked or used up right away. Superstore also always had/has no-name packaged pasta for less than a dollar for the 900 gram package, which makes two meals for our family.
We never bought "ready made" pasta sauces, always just canned tomatoes (now we can all of our own) and made our own sauces with spices and by cooking tomatoes down into paste for thickening (or bought tomato paste on sale).
"Dollar Days" sales and case lot sales were wonderful for pasta, canned tomatoes, frozen veg, canned tuna (I only bought it on sale) etc. I always used these sales to "stock up", especially on baking items as well as what I've already mentioned. Most people seem to buy cases of canned soup at these sales, but we always made our own soup--stock from whatever meat we ate plus whatever veggies we had.
Casseroles can stretch meat a long way if they include pasta/rice/beans and lots of cheap veggies like potatoes and turnips.
We ate/eat a lot of cabbage dishes--cruciferous veggies like broccoli and cauliflower are expensive but you get the same health benefits from cabbage.
We never bought/still don't buy packaged salads or bags of "baby" peeled carrots--we buy big bags of real carrots and make our own salads from heads of lettuce. Iceburg may have less nutrition but it can be really cheap certain times of the year, and tastes good with other salad veggies.
I get the no job or unstable home situation, we've moved a lot ourselves plus hubs doesn't always have work--but instability is a state of mind, you do what you have to do to get by and make your kids feel secure. Even if it means learning to cook and plan meals based on your budget
