I know you're happy with it, but to be honest, I'd actually be concerned about that breakfast. It's all carbs, and depending on the type of oatmeal you are choosing, could be closer to simple carbs than complex carbs. There's no real protein. Your old granola was high fat, most likely, and that would have lowered the glycemic index. You'll have an energy boost, but your blood sugar will crash later and you'll be hungrier much sooner. I would recommend having an orange instead of the orange juice and have either a couple of eggs or add some unflavoured whey protein isolate into the oatmeal - and make the oatmeal steel cut oats. Some nuts or seeds would be a great idea too. You could also add berries to the oatmeal instead of having an orange.