For vegetable soups I stick to consommé and don't thicken them at all, unless I feel like cream-of-vegetable. when I feel extra luxurious I chuck in some broccoli and Stilton, my favourite mix!
I am a serial user of home made stocks, and make batches of whatever kinds of meat take my fancy. I portion them in Chinese meal containers and freeze.
Whenever I have a chicken roast, I boil up what's left after Sunday lunch and freeze the resulting broth. Now and then I buy a small broiling chicken and make a broth with the whole bird.
I make a low-carb tomato sauce with tinned tomatoes, puree and dried herbs; whizzed up in a blender. No recipe. Just keep tasting until you're happy!
I use chicken-broth as a basis for most meat soups. (I also add chicken broth to the roasting pan when I make the Sunday roast, whatever the meat.) I don't buy joints from supermarkets, but use a real butcher, who gets me all sorts of non-standard meats. I buy an Oxtail now and again, and make a broth with that. It's a delicious, meaty soup is that; mixed with a little of my tomato sauce, and a few spices, it sure beats Heinz! If I have leftover game, I make a 'Poacher's broth' and freeze that.
All in all, I have the makings for Beef and Tomato soup, Chicken and Mushroom soup, Chicken and Vegetable soup, Oxtail and Tomato soup, and of course I can always add cream for 'cream-of-whatever'! Occasionally I allow myself some peas or beans as I love pea/broad bean and ham soup with cream! Loverly grub, and I don't get too tied down with recipes.
I hope my broth-based soups help you good people. It might sound like a lot of work, but it really isn't. At the least you know what goes into your soups, and that you aren't overloading on carbs.
Now a confession... I love porridge. I do fall to temptation, and it's deliciously depraved when made with double cream, and a sinful spoon or two of sugar!
Now I am working on making low carb ice-creams, and smoothies, but I am having difficulty finding a sweetener that doesn't cause bathroom problems!
Incidentally I have lost yet another 10 pounds since my last visit! Down to 17.5 stones!
Cheers and Bon Appetit (Guessing here, as I have little French!)