Eat: Stock up on matzo ball soup, brisket, and lox platters at Steingold’s of Chicago. Eat: Pickup a Passover feast of salmon, short rib, tzimmes, and couscous kasha varnishkes for takeout from Summer House Santa Monica. Eat: Save room for flourless sweets, like souffle, macaroons, and mousse at Bittersweet Pastry Shop & Cafe.