Get some water boiling and cook the shells until they're a bit under-done. You don't want them fully done or they'll be too soft to stuff. Meanwhile, preheat your oven to 350℉.
1 Lb. Jumbo Shells
Using a bit of butter or oil, saute the spinach until it's wilted, likely in several batches.
16 Oz. Fresh Baby Spinach
In a bowl, mix together the cottage cheese, ricotta cheese, mozzarella cheese, eggs, spinach, and spices.
2 Eggs, 8 Oz. Ricotta Cheese, 8 Oz. Cottage Cheese, 8 Oz. Mozzarella Cheese, 1 Tsp Garlic Powder, ½ Tsp Nutmeg
Pour some of the spaghetti sauce into your baking dish, to cover the bottom.
32 Oz. Spaghetti Sauce
Stuff the shells with cheese mixture. The more you add, the fewer shells you get, so keep that in mind as you go.
Arrange the shells across the baking dishes, top with the rest of the spaghetti sauce, and cover with parmesan and extra mozzarella if you like. Bake this for 30 minutes, until the cheese browns up.
2 Tbsp Parmesan Cheese