BURLINGTON, VT. — Bruegger’s Enterprises, Inc. has expanded its menu with the launch of the Skinny Bagel. Available in more than 15 varieties, the Skinny Bagel has approximately one-third of its center removed and contains 100 fewer calories than a classic bagel, Bruegger’s said. In addition to the bagels, Bruegger’s is rolling out the Skinny Zesty Egg White Sandwich, a limited-time offer featuring egg whites, turkey sausage, Swiss cheese and sundried tomato spread on a Skinny Bagel.