If you don't have oat flour, grind about 1 cup of whole rolled oats in a food processor to make 3/4 cup of oat flour.
Chop the pecans. Hold off on adding these until the batter is combined.
Combine the dry ingredients (oat flour, whole rolled oats, cinnamon, baking powder, salt).
Combine the wet ingredients (milk, applesauce, vanilla extract, olive oil).
Mix all of the ingredients with a spatula or spoon until combined.
While the batter sits for about 5 minutes, turn on the heat under your pan or griddle to low-medium. Once it's heated, a light splash of water will sizzle and disintegrate.
Optional: Grease the pan with oil or butter, using less (or none) if using a non-stick pan.
Using a 1/4 cup, drop batter onto the pan.
Once each pancake starts to form bubbles around the edge, use a spatula to lift an edge. If it's brown, flip it over and let it cook on the other side.
Once cooked on both sides, move the pancakes to a plate. Optional: Keep them on a plate in a slightly warm oven.
Top with the remaining pecan pieces, maple syrup, or any other toppings you'd like.