Heat oven to 350°F. In medium bowl, stir together soup and enchilada sauce.
In large bowl, mix 1 cup soup mixture with the chicken, corn and 1 cup of the cheese. In small bowl, set aside 3/4 cup soup mixture. Spread remaining 1 1/2 cups soup mixture in ungreased 13x9-inch baking dish.On microwavable plate, stack tortillas and cover with paper towel; heat on High 1 minute to soften. Place about 1/4 cup chicken mixture along middle of each tortilla. Roll up and place seam sides down in baking dish with sauce.
Pour 3/4 cup soup mixture over enchiladas. Sprinkle with remaining 1 cup cheese. Bake 25 to 30 minutes or until cheese is melted and sauce is bubbly around edges.
Meanwhile, in small bowl, stir together tomatoes and cilantro. Spoon tomato mixture over each serving. Garnish with lime wedge, if desired.