Take bread scraps out of the freezer and cube the bread.
Pull pre-cooked chicken out and shred it.
Dice a whole onion.
Place a pot on the stove over medium heat and put 1 Tablespoon of olive oil in the pan.
Transfer the diced onions to the pot and saute until the onion is translucent.
Add chicken and spinach to the pot. Let the spinach wilt down slowly.
Add chicken broth and throw the bread cubes into the soup. The bread will start breaking down and thicken the soup right up.
While the bread is breaking down, continue occasionally stirring with the spatula so it doesn’t burn on the bottom of the pan.
Bring to a boil and season with salt and pepper to taste.
Once the soup comes to a boil, take it off the burner and serve. Top it with parmesan or cheddar cheese if desired.