Get up 2-3 hours before the run and eat something “real” like a couple eggs and toast, or some oatmeal with some nuts, or 1 cup of good quality yogurt with berries and cereal, or other meal options with some protein and fat. Protein takes time to digest, but if you have the time, eating a breakfast like this leaves you well fueled for a tough morning session or race. I’d keep the total calories under 600.