Sizl, a Chicago-based cook-to-order food delivery service, has raised $3.5 million in seed funding to enhance its offerings. The company aims to shift perceptions of dark kitchens by providing meals made with fresh, locally sourced ingredients within 30 minutes. Unlike typical ghost kitchens, Sizl operates its own kitchens staffed by Ukrainian cooks and local talent. The service features a mobile app that rewards customers through game mechanics and offers cashback on orders. Sizl plans to expand to four additional kitchens in Chicago and is eyeing growth in Boston, Charlotte, and San Francisco.