Crockpot French Toast Casserole

Grease a 6 to 7-quart slow cooker with cooking spray.
Cube the bread into small 1-inch cubes, and layer it with the pecans in the slow cooker.
In a large mixing bowl, whisk together the eggs, milk, real maple syrup, vanilla extract, salt, cinnamon, and nutmeg.
Pour the egg mixture over the bread and pecans in the CrockPot, and give it all a gentle toss. Make sure all the bread is good and soaked.
In a separate small mixing bowl, mix together the sliced butter, brown sugar, and cinnamon.
Crumble the cinnamon brown sugar topping over the entire casserole; it’s a really moist mixture.
Place the lid on the slow cooker, and cook on high for 2 to 2 1/2 hours; or cook on low for 3 to 4 hours.
To make sure it's done, you can check the internal temperature with a meat thermometer to make sure it's up to the proper temp for eggs.
Slice it and serve it with powdered sugar and/or maple syrup. Keep the rest of the casserole warm, using the “Keep Warm” setting on the slow cooker, if applicable.