Preheat oven to 350 F. Grease 8.5 x 12-inch pan.
Place croissant bread cubes in the pan and spread evenly.
In a medium bowl, mix together eggs, milk, cream, sugar, goat cheese (some will incorporate some will be lumpy when you pour the custard over the bread crumbs - its all fine) maple syrup vanilla, cinnamon, and lemon zest
Pour the mixture evenly over the pan of croissant cubes.
Sprinkle blueberries evenly over the top.
Refrigerate for at least two hours or overnight so the mixture soaks in the custard
Bake uncovered at 350 F for 45-50 minutes, or until the top is set.
Mix together the powdered sugar and lemon juice to form a glaze - (add a bit of milk or water if the glaze is too thick)
Drizzle with a fork over cooled bread pudding or serve with whipped cream and blueberry syrup alongside