Prepare all of your veggies, spices and set aside.
Add only 6 cups of the water (or broth if using the updated version below) to a large pot and bring to a boil, add the bouillon cubes (or all the additional spices listed under the updated version below in place using the bouillon cubes), thyme, salt, nutritional yeast and whisk to dissolve.
Immediately add all of the veggies (carrots, celery, onion, garlic and potatoes). You are adding all of the ingredients except the pasta. Stir well and bring back to a boil. Once boiling, immediately turn to the lowest heat, cover and simmer around 10 minutes until the carrots and potatoes are becoming tender, but not fully.
Add the pasta and bring back to a simmer over medium-high heat. Once simmering, leave the lid off and cook for about 10 minutes, or until the pasta is tender, but still firm. If using gluten-free pasta, it will cook much faster, so keep an eye.
Taste and add any more salt, if needed, as this can greatly vary depending on the broth or quality of bouillon cubes used. I like a good grind of freshly ground black pepper to serve on top. If you want it more brothy, add more broth and adjust seasonings as needed to account for extra broth.
Garnish with freshly chopped parsley and a fresh squeeze of lemon juice right before serving.