Heat 1 tablespoon of olive oil in a large pot, when hot, and the chicken and lightly brown and no longer pink, it does not need to be cooked through. Remove with a slotted spoon to a bowl and set aside.
Heat the remaining 1 tablespoon of oil in the pot, when hot, add the celery, onion, and carrot and cook until the onion is soft, stirring occasionally, about 3-4 minutes.
Sprinkle in 3 tablespoons of the flour and stir into the vegetables. Stir in the rosemary, thyme, and sage. Season with salt and pepper to taste, as desired. Cook for another 2 minutes.
Add the potatoes, sweet potatoes, bell pepper, chicken, wine, and broth and stir to mix. Bring to a boil, then reduce to a simmer, cover, and cook for 30 minutes, stirring occasionally.
Add the green beans, or peas, and stir in the cream.
If want to thicken the stew, mix 2 tablespoons of cornstarch with 1 cup of cold water or broth, stir to combine and there is no lumps, this is your thickening slurry. Bring the stew up to a boil, slowly pour in the slurry while stirring, boil for a few minutes to thicken the stew.
Ladle into serving bowls and serve. Enjoy.