In a large bowl, whisk the ricotta cheese, egg whites, whole egg, and vanilla extract until the mixture is smooth and well combined.
Add the oat flour, baking powder, lemon zest, and sea salt to the bowl, stirring until the dry ingredients are just incorporated.
Gently fold in half of the fresh blueberries to ensure they remain whole and do not bleed into the batter.
Heat a large non-stick skillet over medium-low heat and lightly grease the surface with coconut oil.
Scoop 1/4 cup of batter per pancake onto the skillet, cooking for 3 to 4 minutes until small bubbles appear on the surface.
Flip carefully and cook for an additional 2 minutes until the pancakes are golden brown and cooked through.
Serve the pancakes warm, topped with the remaining fresh blueberries and a generous dollop of Greek yogurt.