This is a basic miso soup recipe from my Grandfather. Many different leftover items can be added; tofu, eggs, vegetables, cooked chicken or pork, somen/soba, or rice. The recipe calls for Ajinomoto (monosodium glutamate), I usually leave it out. I remember my Grandfather only using a dash of MSG, if you'd like to add it.
This goes together in a flash-and is really flexible for using ingredients on hand. You can either make this with noodles or dumplings, or leave them out. We like our soup salty, so adjust that to your taste.
I originally found this recipe at Recipe Goldmine but have added and subtracted after trial and error. The original recipe called for a 10 oz pkg of frozen peas to be added during the last 15 minutes of cooking. I usually add a little rosemary and cayenne. Can add the spices you wish. This is very good!
I found this recipe on bestrecipes.com and it is so easy and delicious. I made it without bacon but I am sure it would be great with it. You can also use shredded chicken in the soup if you like it thick. This would be a great way to use up leftover chicken from a roast.