I've been looking at this myself and there are a couple of granolas that are now a HE
Raw Health Fruity Granola 30g
Lizi's Mango & Macadamia 25g
You don't get much but it's something, I was just looking at a Tesco Healthy Living Seed, Fruit & Nut Cereal Bar which is now a HEB and wondering whether if you blitzed it up a bit it might make a texture like granola.