Place oats, blueberries, nut butter, honey, protein powder, 2 Tablespoons of the milk, and chia seeds in a large bowl.
1 and 1/2 cups old-fashioned rolled oats, 3/4 cup freeze-dried blueberries, 1/3 cup almond, cashew, peanut, or another nut butter, 1/4 cup honey, 2 scoops vanilla protein powder, 2-3 Tablespoons milk, 2 teaspoons chia seeds