Stuffed Portobello with Balsamic Glaze recipes

Name: Stuffed Portobello with Balsamic Glaze recipes
Ingredients: 1 10-ounce package frozen spinach; 2 tablespoons olive oil; 1 cup chopped sweet onion; 3 garlic cloves, minced; 1/4 cup sundried tomatoes, chopped; 1/4 cup marinated artichoke hearts, drained and chopped; 1/4 cup plus 6 tablespoons finely grated Parmesan cheese; 1 5-ounce package soft fresh goat cheese, crumbled; 1/4 cup unseasoned dry breadcrumbs; salt; pepper; 4-6 portobello mushroom caps; 1/2 cup balsamic vinegar; 2 tablespoons brown sugar; 1 sprig fresh thyme