Place pasta, tomatoes, onion, garlic, basil, in a large stock pot. Pour in vegetable broth. Sprinkle on top the pepper flakes and oregano. Drizzle top with oil.
Cover pot and bring to a boil. Reduce to a low simmer and keep covered and cook for about 10 minutes, stirring every 2 minutes or so. Cook until almost all liquid has evaporated. Leave about an inch of liquid in the bottom of the pot.
Season to taste with salt and pepper , stirring pasta several times to distribute the liquid in the bottom of the pot. Serve garnished with Parmesan cheese.
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