There are very few options for food in CLE airport, especially for breakfast. Between Dunkin Donuts, Bruegger's, and Auntie Anne's, there are slim pickings when it comes to healthy food. In a quest for a healthy breakfast, I got a cup of oatmeal from Brueggers. At $3.99 it was a little overpriced when compared with Starbucks oatmeal ($3.79). They give you a hearty portion but it was a bit watery and didn't come with any toppings, like almonds/brown sugar/raisins, which I've found other places like Starbucks and Cosi do give out.
That being said, Bruegger's is a bagel place and I wasn't expecting them to have amazing oatmeal. Their bagels are pretty good and inexpensive!