Combine pasta, tomatoes, spinach, onion, garlic, Italian seasoning, red pepper flakes, chopped basil, olive oil, and broth in a large pot. Bring to a boil over high heat. Reduce heat to a simmer, stirring and turning pasta frequently with tongs, until pasta is al dente, about 9 minutes.
Season to taste with salt and pepper, divide among bowls, and garnish with torn basil. Serve with olive oil and Parmesan cheese.
Cook's Note: For those on a gluten-free diet, use gluten-free pasta!