Put a large stockpot over medium-high heat
Add vegetable oil and pasta
Stir constantly until the pasta is lighter and color and toasty in places, about five minutes
Add the broth, tomatoes, sauce, and dehydrated onion
Cover and let boil for 15 minutes or until the pasta is tender
Salt and pepper to taste
Remove from heat and serve
Add a spoon each of cilantro, onion, and mayo
Stir well until the soup is very creamy
