Step 1 - Preheat the oven to 350°F (180°C
Step 2 - In a large bowl, mix together the rolled oats, protein powder, and sea salt
Step 3 - In a separate bowl, mix together the almond butter, maple syrup, and vanilla extract
Step 4 - Add the wet mixture to the dry mixture and stir until well combined, and fold in the frozen mixed berries
Step 5 - Press the mixture into a parchment-lined baking dish and bake for 20-25 minutes or until lightly golden brown
Step 6 - Let the bars cool completely before slicing them into squares