Preheat oven to 350° F.
In a small bowl, combine chicken and wing sauce.
In a medium bowl, mix cooked spinach, blue cheese, cream cheese and Colby cheese until thoroughly combined. Stir in beaten eggs.
In an 8 x 8-inch pan, place a single sheet of phyllo; brush with butter. Layer another sheet of phyllo and brush with butter. Repeat layering until you have 4 layers. Place half of chicken mixture on top of phyllo. Layer with 4 more sheets of phyllo and butter. Top with half of spinach mixture. Repeat process, layering 4 more sheets of phyllo and butter, final half of chicken mixture, 4 more sheets of phyllo and butter and remainder of spinach mixture. Top with 4 more sheets of phyllo and butter. Generously brush top with butter.
Bake for 35 minutes or until top is golden brown. Serve with additional wing sauce and blue cheese.