Homemade kefir is the usual breakfast food here, either blended with strawberries and stevia or else with orange juice concentrate and vanilla. I usually add spinach or greens powder to it. Oatmeal and scrambled eggs fill in when that's not enough because they're cheap, easy, and filling. The kids like to add peanut butter to their oatmeal for extra protein. I guess we're pretty boring here but at least it's a rut we enjoy being in.