In a large pot, combine the spaghetti, cherry tomatoes, minced garlic, spinach leaves, chopped basil, vegetable or chicken broth, and olive oil. Season with salt and pepper to taste.

Place the pot over medium-high heat and bring the mixture to a boil, stirring occasionally to prevent sticking.

Once boiling, reduce the heat to medium-low and let the pasta simmer, uncovered, stirring occasionally, for about 10-12 minutes, or until the pasta is cooked al dente and the liquid has mostly evaporated, leaving a creamy sauce.

Once the pasta is cooked to your liking and the sauce has thickened, remove the pot from the heat.

Serve the one-pot pasta immediately, garnished with additional fresh basil leaves and grated Parmesan cheese if desired.