Alsatian Breakfast Sausage Casserole | Just A Pinch Recipes

Ingredients

• - 12 oz. skinless link breakfast sausage, chopped
• - 1/2 cup diced onion
• - 6 large eggs
• - 2 cups milk
• - 2 tbsp. corase grain or dijon mustard
• - 1 tbsp. chopped fresh sage or 1/2 tsp. dried rubbed sage
• - 1/4 tsp. kosher salt
• - black pepper
• - 4 slices rye bread, cut into 1 inch pieces, 1 oz. each
• - 1 1/2 to 2 cups peeled sweet apple, such as honeycrisp, cubed into 1/2 inch pieces
• - 2 cups shredded gruyere, divided, 8 oz