Heat oil in 12-inch skillet over medium-high heat. Add eggplant and cook until lightly browned and almost tender, about 10 minutes, stirring occasionally. Remove to large bowl with slotted spoon.
Reduce heat to medium. Add celery, zucchini, onion and garlic to skillet; cook 5 minutes. Stir in eggplant, water, tomatoes, olives, sugar, capers, vinegar, TABASCO® Sauce, salt and oregano. Heat to boiling over high heat. Reduce heat and simmer uncovered 10 minutes or until vegetables are tender, stirring occasionally. Serve at room temperature.
Makes 6 servings.