Preheat your oven to 350°F (175°C).
Grease your 9-inch round cake pan with olive oil or line it with parchment paper.
In a large mixing bowl, whisk together the ricotta, olive oil, sugar, lemon zest, and eggs until smooth.
In a separate bowl, combine the all-purpose flour, almond meal, baking powder, baking soda, and salt. Whisk together.
Gradually add the dry mixture to the wet ingredients, folding gently with a rubber spatula until just combined.
Transfer the batter into your prepared cake pan, smoothing the top.
Place the pan in the oven and bake for about 35-40 minutes, or until a toothpick comes out clean.
Let the cake cool in the pan for 10 minutes, then transfer it to a cooling rack to cool completely.
