It looks good! Substitutions are not easy; it's particularly complex when it comes to flours. I like using oat+banana+egg+chunks of fruit for cakes when I don't want to use flour, so I can imagine the texture and flavor of your cute dessert.
Glad to know you're taking care of yourself but still eating dessert 😁❤️
I often this one for breakfast, sometimes with muffin shapes, sometimes just with pancake style. Everything adjustable 😊