Creating One Pot Turkey Tetrazzini is easy if you follow these simple steps:

1. Sauté the Vegetables: In a large pot, heat olive oil over medium heat. Add the onion, mushrooms, and garlic. Sauté for about 5 minutes, until the vegetables are tender.

2. Add the Spaghetti: Stir in the uncooked spaghetti, followed by the chicken broth, heavy cream, and the turkey. Mix thoroughly.

3. Season: Add thyme, parsley, salt, and pepper. Bring the mixture to a boil, then reduce to a simmer.

4. Cook the Pasta: Cover and let simmer for 15-20 minutes, stirring occasionally, until the pasta is cooked al dente. Add more broth or cream if you like it creamier.

5. Add Peas and Carrots: Stir in the frozen peas and carrots and cook for another 5 minutes until everything is heated through.

6. Cheese It Up: Remove the pot from heat and mix in half of the shredded cheddar cheese. Stir until melted and combined.

7. Serve: Scoop the tetrazzini into bowls, topping each serving with the remaining cheddar cheese.

8. Garnish: If desired, sprinkle fresh parsley on top for a pop of color and extra flavor.