Combine the greek yogurt and eggs in a medium sized bowl. Whisk to combine.In a separate bowl, mix together the flour and baking soda.Pour the yogurt mixture over the dry ingredients and stir to combine. Add in the milk and mashed banana and mix well.Heat a large skillet on the stove to medium heat, or turn an electric griddle to 350 degrees. Melt a little butter in the skillet or on the griddle and scoop batter on top into desired sizes. (I use a heaping ¼ cup scoop and spread them out a little.)Once tops start to bubble, flip and cook until both sides are cooked through. Serve with maple syrup, jam, almond butter, or fresh fruit.