Preheat oven to 350 degrees.

Add oats, applesauce, honey, chia seeds, cinnamon and salt to a bowl and mix until combined.

Spray muffin tin with cooking spray.

Add an even amount of oat mixture to muffin tin to make 6 oat cups.

Use your fingers or a spoon to press the mixture into the sides and base of the muffin tin.

Bake for 12-13 minutes.

Let it cool in the muffin tin for about 10 minutes before using a butter knife to remove the oatmeal cups.

Let the cups cool completely before filling with yogurt and diced apples.