Creamy Chicken Mushroom Stroganoff

Name: Creamy Chicken Mushroom Stroganoff
Cuisine: European, Eastern European
Ingredients: 2 tablespoons olive oil; 1 pound chicken breast, cut into bite-sized pieces; Salt and pepper to taste; 1 tablespoon butter; 1 onion, finely chopped; 3 cloves garlic, minced; 8 ounces mushrooms, sliced; 1 teaspoon dried thyme; 1 teaspoon paprika; 1 tablespoon all-purpose flour; 1 cup chicken broth; 1 cup heavy cream; 1 tablespoon Worcestershire sauce; 1 teaspoon Dijon mustard; Fresh parsley, chopped (for garnish)