Prepare noodles according to package directions below. Cut in 3 to 4-inch lengths. In 4-quart saucepan, brown sliced sausage. Add onions and garlic, cook over medium heat 5 minutes. Stir in chicken broth, bring to a simmer. Cook 5 minutes. Stir in frozen spinach and oregano, return simmer. Add noodles. Cook 5 minutes. Serve.