You can definitely make these baked oatmeal cups without milk or eggs, so they are vegan-friendly! I recommend using non-dairy milk such as almond or coconut milk to keep the calorie count lower, but you can use dairy milk, or just skip the milk altogether and use water. As for eggs, you can sub in 1 mashed banana in place of the two eggs. The texture may be a bit off, but you will get similar results and end up with vegan oatmeal cups!