Preheat oven to 350°F (175°C) and grease a 9×9-inch baking dish.
Whisk cottage cheese, eggs, maple syrup, and vanilla in a bowl.
Stir in oats (or almond flour), cinnamon, and baking powder.
Fold in diced apples.
Pour into baking dish and spread evenly.
Bake for 35-40 minutes until golden and toothpick comes out clean.
Let cool slightly before slicing and serving.
