Overnight oats require no cooking or heating. The liquid is soaked up in the oats overnight, doing the work to soften the oats that cooking them would normally do.
Kefir is a probiotic (healthy bacteria) drink that is essentially fermented milk. Kefir typically contains a lot more probiotics than yogurt.
This recipe combines probiotic (kefir's healthy bacteria) with prebiotic foods (oatmeal's fiber). This combo can help keep digestive systems regular and functioning well.
Mix together all of the ingredients except for the toppings in a bowl or jar.
Or at least for a few hours, then serve chilled. If you prefer warm oatmeal, you can heat in the microwave to desired temperature.