Place the olive oil in a medium skillet over medium-high heat. Add the onion, celery and garlic. Reduce the heat to medium and cook, stirring frequently, until the onion has softened slightly. Add the ground beef.
Cook until the beef is browned and add the tomato paste, water, salt, pepper, tarragon, thyme, bay leaves, oregano and sage.
Reduce the heat to medium-low and cook, stirring occasionally, until the liquid has reduced to about 1/2 cup and the sauce is thickened.
