Pour in the broth (for a chunkier soup, use less broth, maybe only 6 cups; you can always add more later), and add the tomatoes, potatoes, bay leaves, Italian seasoning, and season with salt and pepper to taste. Bring the soup to a boil then add the green beans. Cover the pot and reduce the heat to a simmer over medium-high. Cook until the potatoes are tender, about 20-30 minutes.