1Heat the oil in a saucepan over medium-high heat. Add the chicken and cook until it's well browned on all sides. Remove the chicken from the saucepan and set aside. (I have a large saucepan that will hold all the ingredients above. You can make the recipe in smaller portion or cook in batches) I like to season my chicken a little with special spices...you don't have to season or you can even use a little salt and pepper...or have fun with it.
2Reduce the heat to medium. Add the onion and cook and stir for 2 minutes. Stir the garlic, tomato paste, bell peppers, mushrooms, squash, and spices in the saucepot and cook for 2 minutes.
3Stir in the stock and wine, heat to a boil. Return the chicken to the saucepan. Reduce the heat to low. Cover and cook for 30 minutes.
4Stir in the spinach and cheese. (I layer them both over the top) Cover and cook for 10 minutes or until the chicken is cooked through.