Hearty Breakfast Casserole

Ingredients

• 1 (30 oz) bag frozen hash browns (850 g)
• 2 tablespoons unsalted butter (30 g), melted
• 1 pound breakfast sausage (450 g), cooked and crumbled
• 8 large eggs (about 400 g)
• 1 cup whole milk (240 ml)
• 1 teaspoon salt (5 g)
• ½ teaspoon black pepper (2 g)
• 1 teaspoon garlic powder (4 g)
• 1 cup shredded cheddar cheese (100 g)
• ½ cup chopped green onions (optional)