Crumble sausage into a large saucepan. Cook over medium-low heat. Add onion; cook and stir until transparent. Drain, discarding all but 2 tablespoons of drippings. Stir in flour; cook over medium-low heat about 6 minutes or until the mixture bubbles and turns golden. Stir in milk. Add seasonings; cook, stirring, until thickened. To serve, slice biscuits and spoon gravy over halves.
Makes 4-6 servings.