In a large mixing bowl, combine the rolled oats and protein powder until evenly distributed.
Add the peanut butter, honey, and vanilla extract to the dry mixture.
Stir the ingredients until a thick, sticky, and uniform dough forms.
Fold in the mini chocolate chips and chia seeds.
Using a tablespoon or small cookie scoop, portion the dough into 12 equal-sized pieces.
Roll each portion between your palms until smooth and spherical.
Place the balls on a parchment-lined tray and refrigerate for at least 30 minutes to firm before serving.