Mix oats, cinnamon and brown sugar together in a large bowl.
Melt butter in a small bowl in the microwave. In another large bowl, mix together milk, eggs, vanilla and melted butter. Pour over oat mixture. Add the diced pear and pomegranate. Spread in a greased 9×13 pan.
Either bake immediately for 30 minutes in a preheated 350 degree oven, or cover and refrigerate overnight. Add a few extra minutes of baking time if you refrigerate it.