Heat oil in medium nonstick skillet over medium heat. Add onion and saute until just beginning to soften. Add garlic and cook for 1 minute. Stir in tomatoes and lemon juice. Bring to simmer, remove from heat. Combine sun-dried tomatoes and next 5 ingredients in processor. Process until vegetables are finely chopped.
Transfer to medium bowl, stir in tomato mixture. Season with salt and pepper. Serve with vegetables.