Creamy Mushroom Sauce

Name: Creamy Mushroom Sauce
Prep time: 10 min
Cook time: 15 min
Total time: 25 min
Cuisine: American
Ingredients: 1 tablespoon olive oil; 2 tablespoons butter; 8 ounces cremini or white mushrooms (sliced); 1/2 medium onion (chopped); 4 cloves garlic (minced); 1/2 teaspoon Dijon mustard; 1/4 teaspoon Italian seasoning; 1/2 teaspoon lemon juice; 1/4 cup dry white wine or broth (chicken or veg); 3/4 cup heavy/whipping cream; Salt & pepper (to taste); 1-2 tablespoons chopped fresh parsley