1. Preheat your oven to 350°F (175°C).
2. Heat a tablespoon of olive oil in a skillet over medium heat.
3. Add finely chopped mushrooms and sauté until golden brown.
4. Add minced garlic and crumbled sausage to the skillet, cooking until the sausage is browned and fully cooked.
5. Remove the skillet from heat and allow the mushroom and sausage mixture to cool slightly.
6. In a large mixing bowl, combine softened cream cheese, sour cream, and mayonnaise until smooth and creamy.
7. Gently fold in grated Parmesan cheese and fresh or dried herbs like thyme and parsley.
8. Add the cooled mushroom and sausage mixture to the creamy base, mixing until evenly combined.
9. Grease a baking dish and spread the mixture evenly into the dish.
10. Bake the dip in the oven for 25-30 minutes, or until it is hot and bubbly.
11. For a crispy top, optionally broil for an additional 1-2 minutes until golden brown.
12. Remove from the oven and let the dip cool for a few minutes before serving.
13. Serve with dippers such as baguette slices, crackers, or vegetable sticks. Enjoy!