If you find a recipe that has lots of herbs in you could make it and omit anything you do not like. However, when I make mutton soup, I boil my mutton along with some lentils,chopped onions, carrots and swede. Then, nearer the end of the cooking time when the meat is nearly cooked, I add chopped leeks, some more chopped carrots plus any other chopped vegetables I can lay my hands on. And of course basic seasoning consisting of salt and pepper. This is probably not at all like the soup your mother made, but just use your imagination. I never follow a recipe and my soup is never quite the same each time I make it, but is usually wholesome and very tasty. Good luck which your cooking.