For a richer flavor, try using brown butter instead of regular butter to grease the ramekins. Feel free to experiment with other fruits like blueberries, raspberries, or chopped apples. These baked oats are best enjoyed fresh but can be stored in the refrigerator for up to 2 days. Reheat gently before serving. For a vegan option, substitute the eggs with flax eggs (2 tablespoons ground flaxseed mixed with 6 tablespoons water, let sit for 5 minutes to thicken). If you prefer a less sweet treat, reduce the amount of honey or sweetener.