01 - Preheat oven to 400°F. Lightly coat a 24-cup mini muffin tin with nonstick cooking spray.
02 - In a large mixing bowl, combine the thawed hashbrowns, shredded cheddar cheese, sour cream, melted butter, crumbled bacon if using, chopped green onions, garlic powder, onion powder, salt, black pepper, and the egg. Stir until all ingredients are evenly incorporated.
03 - Spoon the mixture evenly into each cup of the prepared mini muffin tin, pressing gently to pack the mixture firmly into each cup.
04 - Bake for 20 to 25 minutes, or until the bites are golden brown with crispy edges.
05 - Allow the bites to cool in the tin for 3 to 5 minutes before carefully removing. Serve warm with additional sour cream or chopped green onions on top if desired.