Heat a large nonstick skillet over medium heat. Coat pan with cooking spray. Add onion and garlic; cook 2 minutes or until tender, stirring occasionally. Add mushrooms; cook 3 minutes, stirring frequently. Stir in capers and artichokes; cook 30 seconds. Add tomato sauce, olives, wine, and tomatoes; bring to a boil. Reduce heat, and simmer 20 minutes, stirring occasionally.