Ingredients
- 4 tablespoons Butter
- 2 tablespoons Balsamic Vinegar
- 2/3 c Low Sodium Beef Broth
- 4 Onions, peeled and sliced
- 1 c Mozzarella Cheese, shredded
- 4 Chicken Breasts, boneless skinless
- 1/2 c Parmesan Cheese, shredded
- 1/2 teaspoon Pepper
- 1/2 teaspoon salt
- 4 cloves Garlic, minced
- 1 teaspoon thyme