Break up the sausage as it cooks, letting it brown completely. Drain excess grease.
Unroll the crescent rolls and spread them out in the bottom of a 9 × 13 inch baking dish, pressing the seams together to make one large sheet of dough.
Spread the sausage over the dough.
Then add the cheese on top of the sausage.
In a medium bowl whisk the eggs with the milk, oregano, salt, and pepper.
Pour the egg mixture over the top of the casserole.
Bake at 400℉ for about 15-20 minutes until the crust is a nice golden brown and the eggs are set.
Notes
You can have fun with this casserole making any substitutions you want by adding ham or bacon, veggies (asparagus or mushrooms are good), and some other cheese flavors.