Mix egg yolks, almond flour, oat milk, and honey well. (If you have vanilla essence, add 3-4 drops.)
Simmer slowly over medium-low heat. (Do not boil; wait until it gradually thickens.)
Cool in the refrigerator for about 30 minutes.
Add Greek yogurt to the cooled mixture and mix well, then add sliced bananas and soft egg biscuits and mix.
Let it rest in the refrigerator for 1-2 hours before serving.