Preheat oven to 400 degrees.

Oil your pan well on the bottom and sides.

In a bowl, add all ingredients and mix well until combined.

Place the mixture into your prepared pan.

Arrange zucchini slices into the ricotta mixture.

Place pan onto a rimmed baking sheet.

Bake for 30 minutes, then sprinkle more shredded mozzarella on top.

Bake for an additional 15 to 30 minutes until golden and set, checking with a knife to see if it comes out clean.

Let it cool to room temperature before cutting.

Drizzle a little olive oil on top before serving.