In a large mixing bowl, add rolled oats, chia seeds, dairy-free yogurt, non-dairy milk, pure maple syrup, vanilla extract, diced apple, and ground cinnamon. Stir thoroughly until all ingredients are well incorporated.

Cover the bowl tightly with plastic wrap or a lid and refrigerate for at least 2 hours, or ideally overnight.

If preferred, divide the oat mixture into four mason jars or meal prep containers after chilling.

Add your favorite toppings such as almond or peanut butter, nuts, seeds, or additional diced apples.

Check the consistency of your oats and add a splash of non-dairy milk if too thick.

Store any leftovers in airtight containers in the refrigerator for up to 5 days.