Rinse the spinach (do not dry) and place in a pot. Add salt and pepper. Cook over medium heat until tender, about 4-5 minutes.

Drain the spinach in a colander. Once it is sufficiently cool to handle, squeeze out as much water as possible.

Transfer the spinach to a cutting board and chop. Let cool to room temperature.

In a large bowl, combine spinach, garlic, ricotta cheese, flour, egg yolks and parmesan cheese. Taste and adjust seasonings.

Dust your hands in the flour. Take a small amount of the mixture and roll them into small balls in your hands.

Preheat oven to 350 degrees F.

Lightly spray an 8 x 11-inch baking dish with no-stick cooking spray. Gently place them in the prepared baking dish. Place the baking dish on the middle rack of the oven and bake for 20-25 minutes.

Transfer to a serving dish and serve with any kind of sauce you like.