Cheesy "French Onion" Chicken Thighs with Mushrooms, Thyme & Parsley

Name: Cheesy "French Onion" Chicken Thighs with Mushrooms, Thyme & Parsley
Cook time: 35 min
Total time: 35 min
Cuisine: European, American, Mediterranean
Ingredients: 118 ml chicken or vegetable broth; 0.45 kg chicken thighs, boneless skinless; ½ small pkg fresh thyme; 2 cloves garlic; ½ small bunch Italian (flat-leaf) parsley; ⅓ (227 g) block mozzarella cheese; 28 g Parmesan cheese; 0.23 kg white mushrooms; 1 medium yellow onion; black pepper; butter, unsalted; salt; Worcestershire sauce