Rustic Corned Beef & Potato Bake

Ingredients

• 12 ounces Corned Beef Brisket, coarsely chopped
• 1 tablespoon butter, divided
• 1/2 cup chopped onions
• 2 teaspoons chopped fresh thyme
• 1 tablespoons grated, jarred horseradish
• 1 tablespoon butter, softened
• 1/2 teaspoon salt
• 1/4 teaspoon freshly ground black pepper
• 1 cup shredded Swiss cheese
• 1/4 cup shredded Parmesan cheese
• 2 cups potato wedges
• sliced green onions