Stuff chiles as directed. (Do not bake.) Refrigerate up to 24 hours. When ready to serve, bake, covered, 30 min. or until heated through. Top with cheese; continue as directed.
How to Roast Poblano Chiles
Place chiles on rack of broiler pan. Broil until skins are charred or covered with black blisters, turning occasionally. Place in glass bowl; cover with plastic wrap. Let stand 10 min. Remove peppers from bowl; carefully remove peels, being careful not to break the skins. Use small knife to make a vertical cut in side of each pepper. Remove small cluster of seeds attached to base; then discard. Stuff peppers as directed.