Preheat the oven to 350ºF. Grease a 9-inch cake pan with olive oil and line with parchment paper.
In a large bowl, whisk together the almond flour, oat flour, baking powder, baking soda, and salt.
Make a well in the dry ingredients and add the eggs, 1/2 cup olive oil, lemon zest and juice, honey, and vanilla extract.
Whisk together the wet ingredients in the well of the dry ingredients.
Gently fold together the wet and dry ingredients using a rubber spatula until the batter is well combined.
Pour the batter into the prepared cake pan and bake in the center of the oven for 25-35 minutes until golden brown and an inserted toothpick comes out clean.
Allow the cake the cool for 20 minutes in the cake pan then flip onto a baking rack. Brush with the remaining 1 tablespoon honey and allow the cake to cool completely.
Top the cake with fresh berries and lemon zest and serve.