Prepare all ingredients as described above.
In a bowl, mash half of the bananas. Stir in ricotta cheese, buttermilk, eggs, and sugar until well blended.
In a separate bowl, whisk together flour, quick-cooking oatmeal, and baking powder.
Add the dry ingredients to the wet mixture and stir until just combined—do not overmix.
Heat a nonstick skillet over medium heat and lightly grease with oil. Pour ¼ cup of batter per pancake. Cook for 2–3 minutes or until bubbles form and edges are set. Flip and cook 2–3 minutes more. Repeat with remaining batter.
Top the pancakes with the remaining sliced banana, maple syrup, and chopped nuts. Serve with fresh fruit and milk.