Creating One Pot Chicken Spaghetti can be straightforward if you follow these simple steps:

1. Heat Olive Oil: In a large pot, heat olive oil over medium heat.
2. Cook Chicken: Add the diced chicken to the pot and cook until browned, about 5-7 minutes.
3. Sauté Vegetables: Add the diced onion and minced garlic to the pot. Sauté until the onion is translucent, about 3-4 minutes.
4. Add Tomatoes: Stir in the diced tomatoes with their juices, mixing well.
5. Combine Ingredients: Pour in the chicken broth and add the spaghetti, Italian seasoning, salt, and black pepper. Stir to combine.
6. Bring to a Boil: Increase the heat to bring the mixture to a boil. Once boiling, reduce heat to medium-low.
7. Cook Pasta: Cover and cook for about 10-12 minutes, stirring occasionally, until the spaghetti is al dente and the liquid is mostly absorbed.
8. Add Cream and Cheese: Stir in the heavy cream and grated Parmesan cheese until well combined and creamy.
9. Taste and Adjust: Taste the dish and adjust the seasoning if necessary.
10. Garnish and Serve: Remove from heat, garnish with chopped parsley, and serve immediately.

These steps will guide you in creating this incredible dish effortlessly, allowing you to enjoy a delightful meal in no time.