In a pot of salted water, cook the pasta according to the directions on the package. When the pasta is finished drain well.
Heat a nonstick pan over medium heat. Once hot, add the oil. Saute the onion, celery, carrot, and garlic until soft. Add the wine and bring to a simmer.
Stir in the tomato, broth, chicken, and oregano, then season with salt and pepper. Continue to low simmer, stirring occasionally for about 20 minutes to develop flavor. Once very flavorful, add the flour slurry a little at a time to thicken to a creamy consistency. (May not need it all)
Remove from the heat. Stir in the pasta to coat well. Season with salt and pepper to taste.
Serve with bread. Garnish with parsley, small dollops of ricotta, and sprinkle with parmesan.
Notes
Pro Tip; Great meal to batch cook and freeze in portions so you can defrost and heat up so have an already prepared meal