01 - In a medium bowl or large jar, combine the oats, milk, Greek yogurt, chia seeds, honey or maple syrup, vanilla extract, and salt. Stir until well mixed and fully incorporated.
02 - Fold in the diced strawberries and strawberry jam (if using) until evenly distributed throughout the oat mixture.
03 - Divide the mixture evenly between two jars or containers, ensuring both portions contain similar amounts of strawberries and oats.
04 - Cover containers tightly and refrigerate overnight, or for at least 6 hours, until the oats are soft and the mixture has thickened to a creamy consistency.
05 - In the morning, stir the oats thoroughly and add a splash of milk if the consistency is too thick. Top with extra strawberries, granola, or nuts before serving.