Reuben Quiche

Ingredients

• 1 cup plus 3 tablespoons finely crushed Rye Triscuits or other crackers
• 1 tablespoon rye or all-purpose flour
• 2 tablespoons plus 1-1/2 teaspoons butter, melted
• 5 green onions, chopped
• 1 tablespoon butter
• 1-1/2 cups shredded Swiss cheese, divided
• 1 package (2-1/2 ounces) deli corned beef, cut into 2-inch strips
• 1/2 cup sauerkraut, well drained
• 4 large eggs
• 1 cup half-and-half cream
• 1 tablespoon all-purpose flour
• 1/2 teaspoon ground mustard
• 1/4 teaspoon salt