Set your oven to 375°F and lightly grease an 11x7-inch baking dish or a deep-dish pie pan.
In a large skillet over medium-high heat, melt the butter. Add onion, celery, carrots, and peas, cooking for about 5-7 minutes until they start to soften.
Stir in the garlic and cook for another minute until fragrant. Add the shredded chicken and mix well.
Sprinkle the flour over the mixture and stir until everything is evenly coated.
Slowly pour in the chicken broth, stirring continuously to avoid lumps. Let it simmer for 2-3 minutes until it thickens slightly.
Mix in the thyme, parsley, seasoned salt, poultry seasoning, garlic powder, and black pepper.Finally, stir in the heavy cream and let everything cook for another 2-3 minutes until the filling is thick and creamy.
Pour the filling into your prepared baking dish. Spread the crescent rolls over the top of the filling.
Place the dish in the oven and bake for 12-15 minutes or until the crescent rolls are golden brown and cooked through. Let it cool slightly before serving. Enjoy!