In a large bowl, beat the eggs with the orange juice, milk, sugar, vanilla, nutmeg and salt.
Place the bread slices flat and side-by-side in a wide baking pan. It's okay if you have to squeeze them in, but don't let them overlap. Pour the egg mixture over bread. Cover with plastic wrap and refrigerate overnight.
The next morning... preheat oven to 350 degrees.
Coat a rimmed baking sheet with the butter. Place the soaked pieces of bread on the baking sheet. Sprinkle evenly with pecans and oarange zest.
Bake for 20 to 25 minutes until golden brown.
Serve with a pat of butter and warm maple syrup.