Potato and Mushroom Gratin Recipe

Ingredients

• 3 tablespoons olive oil
• 1 lb sliced fresh mushrooms
• 1 3/4 teaspoons salt
• 3 lb Yukon Gold potatoes (9 medium), peeled, thinly sliced
• 2 cloves garlic, finely chopped
• 1 1/2 teaspoons finely chopped fresh rosemary
• 1/2 teaspoon pepper
• 1 1/2 cups shredded Swiss cheese (6 oz)
• 2 cups whipping cream
• 1 cup Progresso™ vegetable broth (from 32-oz carton)
• 1 cup Progresso™ plain panko crispy bread crumbs
• 1/4 cup grated Parmesan cheese