Veggie-Loaded Lasagna Soup (vegetarian)

Source: https://thenaturalnurturer.com/veggie-loaded-lasagna-soup-vegetarian/#recipe

Yield: 6 servings
Prep Time: 10 minutes
Cook Time: 22 minutes
Total Time: 32 minutes

Ingredients
2 tablespoon olive oil
1 cup diced onion (about 1/2 a large onion)
1 cup diced carrots (about 2 large carrots)
1 cup diced zucchini (about 1 small zucchini) (I used bell peppers because I didn't have zucchini)
3/4 teaspoon salt, divided
2 tablespoons balsamic vinegar (I used apple cider vinegar with a bit of sugar)
2 cups pasta sauce
2 cups vegetable broth (I used chicken broth; 2 cups made for a very thick soup; you could easily double it)
3-4 cups loosely packed baby spinach roughly chopped 
6 ounces lasagna noodles (6-8 sheets), broken into about 2-inch pieces (I used oven-ready)
1/3 cup grated parmesan cheese optional
shredded mozzarella cheese and/or ricotta cheese, for serving optional
fresh basil, chopped for garnish, optional

Instructions
Heat olive oil in a large pot over medium-high heat. 

Add onion and carrot and cook for 2-3 minutes.
Add zucchini and cook until it begins to soften, about 2 more minutes. 

Stir in ½ teaspoon of salt.
Add balsamic vinegar and scrape up any browned bits stuck to the bottom of the pot. 

Stir in marinara and broth and bring soup to a simmer.
Once simmering, add broken lasagna noodles to the pot and cook until noodles are tender, about 10 to 12 minutes or according to the cooking time on the box of your lasagna noodles.
After the soup is done cooking, stir in the last 1/4 teaspoon of salt, spinach and grated parmesan (if using) and let the spinach wilt in the hot soup for a minute or two. 

Taste soup for seasoning and add more salt and pepper as needed.
Ladle soup into bowls and sprinkle with a little shredded mozzarella and/or top with a dollop of ricotta cheese, if desired. Sprinkle with fresh basil and enjoy.