Well, I don't put oatmeal in my shake, but I do make a meal out oatmeal that is really good, really high in protein, and really good for you. All you do is make up a cup of oatmeal, add to hit a scoop to a scoop and 1/2 of your favorite protein powder, 1-2 tablespoons of peanut butter, and perhaps a tablespoon of flax, mix all of this together, and waaala! It will look pretty weird, but if you do it with a great tasting chocolate whey protein, it tastes awesome. Definitely give this one a shot. A lot of good calories in there and it doesn't take anymore than 5-10 minutes to make up.