01 -
Heat your oven to 350 degrees. Lightly grease a 9x13 inch baking dish with butter.
02 -
Cook the sausage in a large pan over medium-low heat, breaking it up into crumbles as it browns. Once it's cooked through, transfer it to a plate but leave the drippings in the pan.
03 -
Melt the butter in the same pan with the drippings. Sprinkle the flour over the butter and whisk constantly for about 1 minute. Gradually add the milk, whisking as you pour, until the gravy comes together. Make sure to scrape up all those tasty brown bits from the bottom of the pan.
04 -
Add the Cajun seasoning and season liberally with salt and pepper - gravy needs plenty of seasoning to be really delicious! Taste and adjust as needed. Set aside.
05 -
Add the biscuits to the bottom of the prepared baking dish. Press them down a few times until they cover most of the bottom layer of the pan - they don't have to be perfect.
06 -
Scatter the cooked sausage over the biscuits, then top with the shredded cheese.
07 -
In a medium bowl, whisk together the eggs, half and half, salt, and pepper. Pour this mixture evenly over the biscuits and sausage, making sure to cover edge to edge.
08 -
Pour the gravy over the top of the entire casserole. Place in the oven and bake for 35 to 45 minutes. The casserole is done when it has puffed up and is golden brown on top.
09 -
Let it rest for a few minutes before slicing and serving. This is best enjoyed warm with a drizzle of pancake syrup on top!