Scalloped Potatoes with Mushrooms Recipe: How to Make It

Ingredients

• 2 pounds potatoes (about 4 medium), peeled and sliced
• 1 tablespoon butter
• 1/2 pound sliced fresh mushrooms
• 1 small onion, chopped
• 1 garlic clove, minced
• 1/4 cup all-purpose flour
• 1 cup chicken broth
• 1 teaspoon salt
• 1/2 teaspoon dried oregano
• 1/2 teaspoon pepper
• 1 cup sour cream
• 1 cup coarsely chopped fresh spinach
• 2 cups shredded Swiss cheese