Preheat your oven to 395°F (200°C) and grease a 9x13 inch baking dish with cooking spray or olive oil.

In a large skillet, heat 2 tablespoons of olive oil over medium heat. Add chopped mushrooms and cook for about 3 minutes until softened. Add frozen broccoli florets and minced garlic, sautéing for an additional 2 minutes.

Stir in shredded cooked turkey, sea salt, and ground black pepper, mixing well. Heat for about 2 minutes.

Pour in heavy cream and one cup of shredded cheese. Stir continuously and bring to a gentle simmer, cooking for 3-4 minutes until the cheese melts.

Transfer the mixture into the prepared baking dish, spreading evenly. Sprinkle the remaining shredded cheese over the top.

Bake for 20 minutes, watching for the cheese to turn golden brown and bubbly.

Remove from the oven, let cool for a few minutes, then sprinkle minced parsley over the top as garnish before serving.