Stovetop Method: In a heavy bottomed pot or dutch oven, cook the carrot, onion and celery in a couple of drizzles of olive oil. Season with 1 tsp salt and black pepper to your taste. Cook for 5-7 minutes or just until the vegetables are beginning to soften and brown. Add the garlic and saute for one more minute.
To the pot add diced tomatoes, chicken broth, tomato sauce, bay leaves, sugar, Italian seasoning and red pepper flakes. Reserve the pasta to add at the end of cooking. Bring to a boil.
Cover and reduce the heat to low. Simmer for 30 minutes.
Uncover, taste and adjust the seasonings if needed, then add rotini pasta.
Cover and continue to simmer on medium heat for an additional 15 minutes or until the pasta is al dente.
Serve with a sprinkle of Parmesan cheese and chopped fresh basil, if desired.
Slow Cooker Method: In a skillet over medium-high heat cook the carrot, onion and celery in a couple of drizzles of olive oil. Season with seasoned salt and black pepper, to your taste. Cook for 5-7 minutes until the vegetables are beginning to soften and brown. Add the garlic and saute for another minute.
Add the cooked vegetables to the slow cooker with the remaining ingredients and seasonings, reserving the pasta to add at the end of cooking. Stir to combine.
Cover and cook on low for 6-8 hours.
Uncover, increase the slow cooker to the high setting and add the pasta.
Replace the lid and simmer on high for an additional 20 minutes or until the pasta is al dente. (Pro Tip: If using cooked pasta, cook just until the pasta is heated through)
Ladle into bowls and serve with a sprinkle of Parmesan cheese and chopped fresh basil, if desired.