Preheat oven to 350°F and grease a 12-cup muffin pan.
Brown and crumble sausage in a skillet. Drain and let cool slightly.
In a bowl, beat eggs. Stir in cheese, baking mix, and sausage.
Divide mixture between muffin cups, filling each ¾ full.
Bake for 18–20 minutes, until golden and cooked through.
Let cool slightly before serving.