First attempt, complete SUCCESS! My two year old son and my husband loved it! What I love about this is that you can make multiple jars, in bulk and take them on the go, and make different recipes, so you don't have to get bored with the same thing each day. You should be able to make these on Sunday during your weekly meal prep and they should last 3-5 days, depending on which ingredients you use.
1/3 C Oats
1/3 C Greek Yogurt (I use Greek coconut yogurt for non-dairy)
1/2 C Milk (I use unsweetened almond milk)
1/2 TB Honey
1/2 TB Flax seed
Add all basic ingredients into a mason jar, or other type of jar/container, cover and shake until ingredients are well mixed.