Blueberry French Toast Casserole

Ingredients (11)

• 1 loaf (14- to 16-ounce loaf) day-old sourdough bread
• 1 1/2 cups blueberries
• 8 large eggs
• 2 cups unsweetened vanilla almond milk
• 1/3 cup pure maple syrup
• zest of 1 large lemon
• 2 tablespoons freshly squeezed lemon juice
• 1 tablespoon pure vanilla extract
• 1/2 teaspoon ground cinnamon
• 1/8 teaspoon kosher salt
• For serving: powdered sugar, maple syrup, butter