Assemble casserole as directed but do not prepare egg topping. Refrigerate until ready to serve. Prepare egg topping as directed, spread over casserole then bake as directed.
How to Roast, Peel and Devein Poblano Chiles
Place chiles on rack of broiler pan. Broil until skins are charred or covered with black blisters, turning occasionally. Place hot chiles in bowl; cover with plastic wrap. Let stand 10 min. Remove peels, being careful not to break the skins. To remove the seeds, make a vertical cut in each chile, being careful to not cut through to opposite side of each. Remove small cluster of seeds attached to base of each.
Serve with a mixed green salad and your favorite fresh fruit to round out the meal.