Mash up 1 banana, and divide it between 2 ramekins. Add 1/4 cup rolled oats, 1 tsp brown sugar, a pinch of salt, 1/8 cup of the diced pear and 1/2 tbsp raisins or walnuts (if using) to each ramekin, and mix well. Add 1/2 cup milk to each ramekin, and gently stir until fully incorporated.
Place the ramekins on a baking sheet and bake at 350F for 30 minutes.
Sprinkle a light layer of cinnamon over the entire surface of the oatmeal once it has slightly cooled. Then wipe the excess cinnamon off the sides of the ramekin with a wet paper towel.
Squish a slice of banana into an oval shape, and place it on the oatmeal as the nose. Cut a raisin into a circular shape as the nose, and another raisin into 2 thin strips as the mouth. Then place two chocolate chips with the flat side up onto the oatmeal as the eyes.
Carve 2 banana slices into ear-shapes, and dust on some cinnamon to colour the inside of the ears with your finger. Place them onto the oatmeal, and you’re done!