Reuben Strata Recipe

Ingredients

• 1 Tbsp. unsalted butter
• 1 ¼ lb. sliced pumpernickel bread, staled
• 3 cups diced corned beef
• 3 cups sauerkraut, well drained
• 4 cups shredded Swiss cheese
• 1 ½ cups Thousand Island dressing
• Salt and black pepper
• 10 eggs
• 2 ½ cups whole milk
• 2 Tbsp. Dijon mustard