There is nothing little about Maggiano’s, a 15,000-square-foot, 470-seat behemoth that looms over West End Avenue, the largest chain so far to claim a section of that corridor. Owned by Dallas-based Brinker International—the folks who have somehow managed to make a success of the innocuous Chili’s restaurants—Maggiano’s Little Italy feeds big crowds and big appetites from a big, corporate-controlled menu of pastas, chicken, veal and chops, seafood and house specialties, all à la carte. Family-style service is also available for groups, and a private banquet hall seating 152 can fit your entire mob.