CHICAGO — In one of our kitchens, we just approached the end of Ramadan and the celebration of Eid al-Fitr. In another, we are scouring for wayward crumbs and grains ahead of the start of Passover. Our Christian neighbors, meanwhile, are observing Lent in the lead-up to Holy Week and Easter. There is a lot we could be connecting about during this shared season of reflection and ritual, starting with fasting and food-based rituals to themes of liberation, gratitude and the importance of family traditions. We could swap stories about our shared love of Chicago’s renowned Romanian salami (both kosher...