Mise en place. Melt butter in a large pan over medium heat.
Add garlic and mushroom. Sauté until mushrooms are almost completely cooked and liquid is released.
In a small bowl, mix together softened cream cheese and a couple of tablespoons of released mushroom juices until creamy. It doesn't need to be completely smooth.
Add cream cheese and juice to mushrooms in pan. Sprinkle spices over mushrooms and cream. Mix well.
Continue to cook 2 to 3 minutes, stirring, until cream is completely smooth and mushrooms are done.