Heat oven to 350°F/180°C and grease a 12 cup muffin tin.
In a bowl, mix hash browns, half the cheese, salt and pepper.
Evenly spread out hash browns to fill each muffin cup.
In a small bowl, whisk eggs, milk, and nutmeg. Then add onions and garlic and mix well.
Pour egg mixture over hash browns in muffin cups.
Top each cup with remaining cheese.
Top each cup with bacon, ham, red peppers, and other fixings.
Bake for 20 minutes. Test with a toothpick to ensure quiche is fully cooked in the middle. Once done, let cool for 5 minutes before serving. Garnish with green onions or chives if desired.