1Heat oven to 350ºF. Mix salsa and sour cream. Reserve half of the salsa mixture. Mix half of the salsa mixture, half of the bell pepper and the chicken.
2Place 2 tortillas on ungreased cookie sheet and spread with chicken mixture. Spread 2 tortillas with guacamole and place on chicken mixture. Spread 2 more tortillas with refried beans and place on guacamole. Top each stack with remaining salsa mixture, tortilla, bell pepper and cheese.
3Bake about 15 minutes or until cheese is melted and filling is hot. Cut each stack into 8 wedges.