I don't usually give them a special meal, except when I have leftovers. I think I'll start making extra oatmeal, add raisins to their portion (and mine ... my kid hates raisins) and add whatever else I have too. That's a good idea.
I do sometimes, when it's really cold out, make them pancakes! Unbleached flour, ground eggshells, ground alfalfa pellets, ground flax seeds, egg, powdered milk, garlic, parsley. They prefer the pancakes very well done OR very under-done and gooey. Haven't made any in a week or two.
Make a similar version for my goats (minus the eggshell).