In a large sauté pan over medium heat, add 1 tbsp extra virgin olive oil.
Remove the turkey Italian sausage from their casings and add to the hot pan. Crumble with a wooden spatula and cook all the way through until browned.
Add tomato sauce to the sausage and stir to combine. Season with salt and pepper to taste. Reduce hit to medium low and let simmer while you prepare the ricotta filling.
Add ricotta cheese to a medium sized bowl and stir in chopped spinach and 1/3 cup shredded mozzarella. Stir until well combined.
Stir in garlic powder and dried oregano.
Crack one egg into the bowl and mix one final time until the egg is well combined with the cheese mixture.