Creating Monterey Chicken Spaghetti is a straightforward process. Just follow these steps to ensure a delicious outcome:

1. Cook Spaghetti: In a large pot, bring salted water to a boil. Cook spaghetti according to package instructions. Drain and set aside.

2. Prepare Chicken: While the spaghetti cooks, heat olive oil in a skillet over medium heat. Season chicken breasts with salt, pepper, and paprika. Cook for 6-7 minutes on each side until golden brown and cooked through. Remove from skillet and let it rest.

3. Sauté Onion and Garlic: In the same skillet, add the diced onion and cook for about 3-4 minutes, until softened. Add minced garlic and cook for an additional minute until fragrant.

4. Add Tomatoes and Seasoning: Stir in the drained diced tomatoes and Italian seasoning. Allow the mixture to simmer for 5 minutes, letting the flavors meld together.

5. Make the Sauce: Lower the heat and pour in the heavy cream. Mix well and allow it to heat for 2-3 minutes, stirring occasionally.

6. Combine with Cheese: Gradually add the shredded Monterey Jack and cheddar cheese into the sauce, stirring until melted and incorporated.

7. Shred the Chicken: Slice the cooked chicken into bite-sized pieces or shred it. Add the chicken into the cheese sauce mixture; combine everything thoroughly.

8. Mix Together: Add the cooked spaghetti to the skillet, stirring until everything is well combined and coated in the creamy sauce.

9. Taste and Adjust: Check for seasoning; add salt and pepper as desired.

10. Serve Hot: Remove from heat and immediately serve, garnished with chopped fresh parsley.