01 -
Boil jumbo pasta shells in generously salted water until al dente, about 8 to 10 minutes. Drain and set aside to cool slightly.
02 -
In a large mixing bowl, combine ricotta cheese, 60 g mozzarella, Parmesan, and the egg. Mix thoroughly until smooth and homogeneous.
03 -
Heat olive oil in a skillet over medium heat. Add minced garlic and cook until fragrant, about 30 seconds. Add spinach and cook until wilted, 2–3 minutes. Cool slightly, then stir into ricotta mixture with Italian seasoning, salt, and black pepper.
04 -
Preheat the oven to 190°C. Spread half the marinara sauce in the base of a 22×33 cm (9×13 inch) baking dish. Fill each shell with roughly 2 tablespoons of the ricotta-spinach mixture. Arrange shells upright in the dish.
05 -
Spoon remaining marinara sauce over the filled shells. Top with reserved mozzarella. Cover with aluminum foil and bake for 20 minutes. Remove the foil and bake for a further 10 minutes until golden and bubbling.
06 -
Allow dish to rest for several minutes to meld flavors. Garnish with fresh basil before serving, if desired.