Crumble sausage into a large skillet; add onion and cook over medium heat until sausage is browned. Drain well on paper towels.
Combine all ingredients, stirring until dry ingredients are moistened. Drop batter by heaping tablespoonfuls about 2 inches apart on lightly greased baking sheets. Bake at 425 degrees for 15 minutes or until lightly browned.
