Whisk flour, rolled oats, sugar, baking powder, and salt in a large bowl.

Combine oat milk, applesauce, vegetable oil, and vanilla extract in a separate bowl.

Pour wet ingredients into dry ingredients and mix gently until just combined.

Preheat a non-stick skillet or griddle over medium heat and lightly grease.

Pour 1/4 cup of batter for each pancake and cook until bubbles form and edges set (2-3 minutes).

Flip pancakes and cook for an additional 2-3 minutes until golden brown.

Serve warm with your favorite toppings.