In a large mixing bowl, add 1 cup of quick oats, 1 scoop of protein powder, and any optional mix-ins like chocolate chips. Stir until evenly combined.

Add 1/2 cup of nut butter, 1/4 cup of honey, and 1 teaspoon of vanilla extract to the dry ingredients and mix thoroughly until a sticky dough forms.

Check the dough consistency; if it's too wet, add more oats. If too dry, add more nut butter incrementally until the dough is sticky yet moldable.

Scoop out approximately 1-inch portions of the mixture and roll into balls, placing them on a baking sheet lined with parchment paper.

Refrigerate the rolled energy balls for at least 30 minutes to firm up.

Transfer chilled energy balls into an airtight container and store in the fridge for up to 2 weeks or freeze for up to 3 months.