If you're nostalgic for memories of digging into a barbecue chicken pie at California Pizza Kitchen after a long day of shopping at your local mall, here's a pop-up for you: Celebrated chef Naomi Pomeroy of Ripe Cooperative is paying homage to the chain and its most famous specialty with a special collaboration at Pop Pizza, featuring free-range chicken breast, mozzarella, smoked Gouda, red onion, and barbecue-marinara sauce, plus Ripe Cooperative's house-made "Hidden Willamette Valley Ranch" on the side. Proceeds will support Portland Garment Factory, which was recently a victim of arson.