Full service caterer - Box Lunch to Black Tie. For over a quarter of a century, Pear Tree - Hel's Kitchen Catering has provided some of the most personalized and engaged catering solutions throughout Chicagoland and the entire North Shore. Pear Tree - Hel's Kitchen treats every event as if it were their own. We do this by asking the right questions and carefully listening to you. No two customers are exactly alike, and no two events are either.