Preheat the oven to 325°F. In an ungreased 1½ quart casserole dish, beat the eggs until fluffy. Stir in the leftover oats, coconut milk, almond milk, vanilla, coconut sugar, raisins, salt, pumpkin pie spice, and the essential oils, mixing well. Bake uncovered for 50-60 minutes, stirring every 15 minutes until most of the liquid is absorbed. Remove from the oven.