Heat oven to 375 degrees F.
Mix eggs, sour cream, milk, onion powder and chipotle chile powder in large bowl until blended. Add hash brown potatoes, whole kernel corn, cream-style corn, shredded Cheddar cheese, and chopped peppers; mix well.
Spoon into 13x9-inch pan sprayed with cooking spray.
Bake 40 to 45 min. or until potato mixture is heated through and top is golden brown.