Preparation:

Step 1: Preheat your oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish with cooking spray or butter.

Step 2: In a large skillet over medium heat, cook the breakfast sausage, breaking it apart with a spoon, until browned and cooked through. Drain excess grease and set aside.

Step 3: In a large mixing bowl, whisk together the pancake mix, milk, eggs, vanilla extract, cinnamon (if using), and maple syrup until smooth. If you prefer a slightly sweeter casserole, you can add a bit more maple syrup to the batter.

Step 4: Stir the cooked sausage into the pancake batter, ensuring it is evenly distributed. If you are using shredded cheese, fold it in at this stage.

Step 5: Pour the batter into the prepared baking dish, spreading it out evenly. Drizzle the melted butter over the top for added richness.

Step 6: Place the baking dish in the preheated oven and bake for 30-35 minutes, or until the casserole is golden brown and a toothpick inserted in the center comes out clean.

Step 7: Remove the casserole from the oven and let it cool for 5 minutes before slicing. Serve warm with extra maple syrup on top.