Cook the penne pasta according to the package instructions, drain, and reserve.
While the pasta is cooking, in a large skillet over medium-high heat, melt two tablespoons of butter and brown the diced chicken.
Add the remaining tablespoon of butter, the sliced mushrooms, minced shallot, and garlic, and cook for a couple more minutes or until the mushrooms are cooked through.
Pour in the white wine to deglaze the pan and cook until reduced by half.
Add the chicken broth, heavy cream, dried sage, red pepper flakes, salt, and freshly ground pepper to taste. Cook until slightly thickened.
Mix in the crumbled gorgonzola cheese, and stir until fully melted.
Stir in the cooked pasta until combined and heated through. Serve with freshly grated parmesan and chopped parsley on top.