Not passing judgement about the canned soup, even though I would never eat it.The canned soup is already carrying somewhere around 300-400 mg of sodium.You can put frozen veggies into that can of soup just as easily.
I always have soup stock in the freezer. When I buy split breasts on sale, I cut the meat off and boil the ribs. It makes amazing broth, which I put in the freezer. I can have any soup I like in 15 minutes.
Yes, and I have done that, too. But once in a great while, I'll find myself at the grocery store looking for a quick, cheap dinner, but I don't want to buy a whole bag of frozen vegetables. I just want one of those small 1/2 sized cans. So I quickly rinse them off, dump them into the pot with the soup then toss the empty cans in the recycle bin.
This is not something I do on a regular or even semi-regular basis.
Just something I've done a few times.