Ingredients

• 2 tablespoons red wine vinegar
• 1 1/2 tablespoons Dijon mustard
• 4 garlic cloves, minced
• 1 1/2 cups shredded cooked chicken breasts (about 8 ounces)
• 3/4 cup shredded part-skim mozzarella cheese
• 1/4 cup crumbled feta cheese
• 1/4 cup finely shredded fresh parmesan cheese
• 1/4 cup chopped green onion
• 1 cup chopped mushroom
• 1 cup chopped plum tomato
• 1 (16 ounce) italian cheese-flavored thin style pizza crusts (such as Boboli)