Colcannon with Celery Root & Carrot Top Pesto

I’ve never cared for St. Patrick’s Day, but the odd compulsion I have to be festive wouldn’t let me pass up an excuse to make a traditional Irish recipe today. But, of course, I’ve never been a very traditional human, nor┬ádo I care to be. This recipe makes use of things people generally┬ádiscard, the root…