In large bowl, beat cream cheese, 2 cups shredded Cheddar cheese and the Cajun seasoning with electric mixer on medium speed until blended. On low speed, add eggs one at a time, beating after each addition. Stir in chicken and finely chopped green onions. Spread slightly less than 1/3 cup chicken mixture along center of each cooked lasagna noodle to within 1 inch of one short end. Roll up firmly toward unfilled end. Line 15x10x1-inch pan with foil. Place roll-ups seam side down in pan; cover loosely with foil. Freeze about 30 minutes or until firm.