Preheat your oven to 350°F (180°C).
Make the shortcut sauce: Pour out about 1/4 cup of the passata from the bottle to make room. Add the olive oil, minced garlic, onion powder, garlic powder, Italian herbs, red pepper flakes (if using), sugar, 1 teaspoon salt, and 1/4 teaspoon black pepper directly into the bottle. Screw the lid on tightly and shake well to combine. Set aside.
Cook the pasta: Bring a large pot of salted water to a boil. Cook the pasta according to the package directions, but subtract 1 minute from the recommended cooking time. Before draining, scoop out and reserve 1 cup of the starchy pasta water. Drain the pasta and set aside.
Make the ricotta mixture: In a very large bowl, combine the ricotta cheese, grated parmesan, crushed garlic, the squeezed dry spinach, 1 cup of shredded mozzarella, 3/4 teaspoon salt, and 3/4 teaspoon pepper. Mix well. If the mixture seems thick or crumbly, add a splash (about 2-3 tablespoons) of the reserved pasta water and stir until creamy.
Combine: Add the drained, undercooked pasta to the bowl with the ricotta mixture. Stir until all the pasta is evenly coated.
Assemble: Transfer the pasta mixture to a 9x13 inch (or similar 3 quart) baking dish and spread it into an even layer. Pour the shaken pasta sauce evenly over the top. Sprinkle the remaining 1 1/2 cups of shredded mozzarella cheese over the sauce.
Bake: Loosely cover the baking dish with aluminum foil. Bake for 25 minutes. Then, remove the foil and bake for another 10 minutes, or until the sauce is bubbly and the cheese on top is melted and golden brown.
Rest and serve: Let the pasta bake rest for 5 minutes before serving. Garnish with extra grated parmesan cheese and serve hot.