Preheat oven to 375 degrees Fahrenheit. Arrange bread slices in a large casserole dish and set aside.
In a large bowl whisk together eggs, almond milk, vanilla extract , ground cinnamon, nutmeg, and salt. Pour evenly over bread slices. Add sliced peaches and blueberries evenly in and around the brioche slices.
If making straight away let mixture sit for 10-15 minutes and bake at 375 degrees for 20-25 mins or until bread is golden. Serve with sifted powdered sugar and warm maple syrup.
Notes
To make the night before place plastic wrap tightly over french toast and refrigerate until morning.