BATTLE CREEK, MI — Kids are no stranger to classic food combos, from peanut butter and jelly to milk and cookies. Kellogg’s Nutri-Grain is the latest brand to bring new flavor mashups to breakfast and snack time. The brand just launched three new flavor mashups: Strawberry and Squash soft-baked breakfast bars, Apple and Carrot soft-baked breakfast bars, and Chocolatey Banana bites.