Preheat oven to 375°F. Generously grease a 12-cup muffin tin.
Cook sausage in a skillet over medium heat until fully browned. Drain excess grease.
In a large bowl, whisk eggs with cream, salt, pepper, and optional seasonings.
Evenly divide the cooked sausage among the muffin cups. Sprinkle cheese over the sausage, then pour the egg mixture evenly into each cup.
Bake for 18–22 minutes, or until eggs are just set in the center.
Cool slightly before removing from the pan. Garnish with chopped chives if desired.