Creating Healthy Brownie Baked Oatmeal is straightforward when you follow these easy steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C) and grease a baking dish (approximately 8×8 inches).
2. Combine Dry Ingredients: In a large mixing bowl, whisk together the rolled oats, cocoa powder, baking powder, and salt until combined.
3. Mix Wet Ingredients: In another bowl, whisk together the milk, maple syrup (or honey), applesauce, eggs, and vanilla extract until well mixed.
4. Combine Mixtures: Gradually fold the wet ingredients into the dry ingredients until everything is well incorporated.
5. Add Mix-Ins: If using, fold in dark chocolate chips and nuts to the mixture.
6. Transfer to Dish: Pour the batter into the greased baking dish, spreading it evenly with a spatula.
7. Bake: Place in the preheated oven and bake for 30-35 minutes or until the center is set.
8. Cool: Once baked, remove from the oven and let it cool for at least 10 minutes before slicing.
9. Serve: Scoop out portions and serve warm, topped with fresh fruit or yogurt if desired.

These steps ensure that your Healthy Brownie Baked Oatmeal turns out perfectly with minimal effort!