Soak oats in milk 1 hour (you can do less if you don't have time, just let them get soft). Add egg and other wet ingredients, beat well. Pour in sifted dry ingredients and mix; bake 15-20 minutes until done.
Recipe by The 30 Day Food Blog at https://30dayfoodblog.com/2020/03/30/banana-and-oat-muffins/