Cook and crumble the sausage in a large nonstick skillet over medium heat until no longer pink, then transfer to a paper towel-lined plate to drain excess grease.
Preheat the oven to 375°F (190°C) and lightly spray a rimmed baking sheet with cooking spray.
Unroll the crescent roll dough onto the prepared baking sheet and press along perforations to seal and stretch slightly into a single rectangle.
Stir together the melted butter, Cajun (or Creole) seasoning, and garlic powder, then brush the mixture evenly over the dough.
Spread the Alfredo sauce evenly over the dough, then sprinkle the shredded Colby Jack cheese on top.
Evenly scatter the cooked, crumbled sausage over the cheese layer.
Bake the topped dough for 6 to 7 minutes until the crust just begins to set.
Use a spoon to make five shallow indentations in the pizza, pushing sausage aside to form small wells, then crack one egg into each indentation.
Return to the oven and bake 8 to 10 minutes more, or until the egg whites are set to your liking.
Remove from the oven, sprinkle sliced green onions over the pizza, slice, and serve.