I haven't seen too many people mention canned or frozen veggies. I don't know what people's definition of "affordable" is, but a 500 g (a little over 17 1/2 ounce) bag of frozen kale is $4.99 at a Toronto-based online grocery store (grocerygateway.com). More "regular" frozen veggies (1 kg (about 2.2 lb) bag of…