Preheat the oven to 375F and grease a 9 x 9-inch square baking dish, a 9×13-inch or oval.
In a large bowl, whisk the honey with the liquid stevia, unsweetened almond milk, egg, melted butter, vanilla extract, orange zest, and orange juice until combined.
Add the oats, cinnamon, baking powder, and salt to the liquid mixture and stir to form a thick batter. Add 1 cup cranberries to the batter and fold with a spatula to combine.
Pour oat and cranberry mixture into the prepared baking dish. Arrange cranberries to make sure they are evenly distributed throughout. Top with additional cranberries.
Bake 35 minutes in the preheated oven until the top is golden and the oat mixture is set. Remove from oven and allow mixture to cool slightly prior to serving.