Ground beef cooked in a skillet not drained, green beans finely chopped,apple sauce, mashed potatoes, and rasins mixed in a pretty large amount because they eat a lot. Refridgerate and microwave carefully for no longer than ten seconds, stir and check with your hands.
You can also try Soaked kibbles n bits(cat food),canned dog food.If it is a baby it will get the water it needs from the soaked cat food.