1. 1. Combine Protein Ball Ingredients: In a medium-sized mixing bowl, combine the rolled oats, natural peanut butter, honey (or maple syrup), protein powder (if using), and chia seeds. If you’re adding mini chocolate chips, stir them in now too.

2. 2. Mix Thoroughly: Use a sturdy spoon or your hands to mix all the ingredients together until well combined. The mixture should be thick and slightly sticky. If it seems too dry, add a tiny bit more honey or peanut butter. If it’s too wet, add a tablespoon more oats. You’re looking for a consistency that you can easily roll into balls.

3. 3. Roll the Protein Balls: Take small portions of the mixture, about 1 tablespoon each, and roll them between the palms of your hands to form bite-sized balls. Place the finished balls on a plate or baking sheet lined with parchment paper. You should get about 12-15 balls, depending on their size.

4. 4. Chill the Protein Balls: Once all the balls are rolled, place the plate or baking sheet in the refrigerator for at least 30 minutes. This chilling time helps them firm up and hold their shape better, making them less sticky and easier to handle.

5. 5. Prepare Greek Yogurt with Berries: While the protein balls are chilling, spoon the plain Greek yogurt into small, lidded containers. Top with your chosen berries. If using frozen berries, they will thaw and release some juice, creating a nice swirl of color and flavor.

6. 6. Assemble Other Protein Components: For the remaining snack box items, simply portion out the dry roasted edamame or roasted chickpeas, cheese cubes (or string cheese), and a hard-boiled egg into separate compartments or small containers.

7. 7. Pack the Snack Boxes: Once the protein balls are firm, divide them among your snack boxes. Add the prepared Greek yogurt with berries, edamame/chickpeas, cheese, and hard-boiled egg into their respective sections. Close the containers securely and refrigerate until ready to pack for school.