In a large bowl, combine rolled oats, chia seeds, mashed banana, oat milk, peanut butter, raspberries, and coconut sugar. Stir well until everything is nicely blended.

Divide the mixture evenly into jars or containers, ensuring they’re well sealed.

Place the jars in the refrigerator and let them chill overnight.

In the morning, take the jars out and top each one with extra raspberries, peanut butter, flaked almonds, chopped pistachios, toasted pepitas, extra chia seeds, and sesame seeds as desired.