01
Brown the Sausage
Start by lining your slow cooker with a liner and giving it a quick spray with cooking spray to keep things from sticking. Next, heat a large skillet over medium-high heat and cook the sausage, breaking it up as it browns. It should take about 5 to 7 minutes. Once it’s nicely browned, drain off any grease and set the sausage aside.
02
Whisk and Layer Ingredients
In a bowl, whisk together the eggs, milk, dry mustard, garlic powder, onion powder, salt, and pepper until everything is well combined. Now, it’s time to layer: begin with a third of the hash browns, then add a third of the cooked sausage, and sprinkle on a third of the Cheddar cheese. Repeat this layering two more times, finishing with the cheese on top.
03
Pour and Slow Cook
Pour the egg mixture evenly over the layers, then cover and cook on low for 6 to 8 hours. The casserole is ready when the eggs are fully set and everything is heated through.