4 - 5 cups of tomato sauce (preferably homemade), warm
1 lb. large shells
1 lb. fresh ricotta
10 oz. frozen spinach, thawed and drained
dash of nutmeg
1 lb. low-moisture mozzarella (12 oz. cut into ¼" cubes, 4 oz shredded)
2 c. grated Grana Padano (or Parmigiano Reggiano)
3 T. chopped Italian parsley
1 egg, beaten
Instructions
Preheat the oven to 400°F.
Put the shells in salted, boiling water and cook ⅔ of the recommended cooking time. Drain and put on sheet trays making sure they don't stick together.
In a bowl, combine the ricotta, spinach, nutmeg, cubed mozzarella, 1 c. of the grated cheese, parsley and beaten egg.
Mix the shredded mozzarella and remaining grated Grana Padano together and set aside.
Spread 2 c. of the tomato sauce in a 9 x 13 or 10 x 15 ceramic baking dish. (fyi-they're a tight fit in the smaller size dish but still works great)
Stuff each shell with 1 T. of the ricotta filling and arrange in the baking dish.
Top with 2 more cups of the sauce and sprinkle the reserved mozzarella/Grana Padano cheese mixture.
Add remaining sauce over the top if desired.
Tent the baking dish with foil and bake about 25 minutes until bubbly.
Remove foil and bake until golden and slightly crusty, about 5-10 minutes more.
Recipe by Ortensia Blu at https://ortensiablutraveladventures.com/baked-stuffed-shells-pasta-rigo/