Yeah, some of those soups are great when mixed with other ingredients, and you sure don't need to add salt.
I use tomato bisque to make a chili thing my family loves. I was stumped one night, needed to make dinner and started to gather 'things' from the fridge and pantry. I browned a pound of ground beef and then tossed in 2 medium sized sliced onions, then I toss in a generous amount of chili powder, around 1/4 tsp red pepper, garlic salt to taste, and once the aroma seems right I toss in about 8 ounces of sliced mushrooms (I use canned mushrooms only because they dont need to be sautéed), then I stir in a can of Campbells Tomato Bisque and let it simmer. (the idea is to get everything browned before the onions get too soft, but that how my family likes it....it might not matter to others)
It's quick, it's satisfying (if you like beef, chili and garlic) and I've even taken it to office parties.
Maybe it sounds awful, but it's been helpful in our household.