01 -
Set the oven to 175°C and allow it to fully preheat.
02 -
Spread a one-inch layer of spaghetti sauce on the bottom of 1-2 large glass baking dishes, adding extra sauce if a saucier result is desired.
03 -
Boil the pasta shells in salted, oiled water for approximately 11 minutes or until al dente. Drain well and set aside to cool slightly.
04 -
Dice onion, mince garlic cloves, and chop spinach. Portion out all other ingredients for streamlined assembly.
05 -
In a small pan over medium-high heat, sauté diced onion and minced garlic until fragrant and translucent.
06 -
In a large mixing bowl, combine ricotta, grated parmesan, chopped spinach, Italian seasoning, garlic powder, dried parsley, dried basil, crushed red pepper, dried oregano, salt, and pepper. Incorporate the sautéed onions and garlic, and mix thoroughly. For a thicker texture, gently whisk 1-2 eggs and fold into the filling.
07 -
Spoon the ricotta filling into each cooked pasta shell and arrange them snugly in the prepared baking dishes.
08 -
If preferred, drizzle additional spaghetti sauce over the filled shells or leave exposed. Sprinkle generously with grated mozzarella and extra parmesan. Optionally, add more crushed red pepper and dried basil on top.
09 -
Cover the baking dish lightly with foil and bake for 20-30 minutes, or until filling is hot and sauce is bubbling. For a golden, melted cheese layer, uncover and bake an additional 5-10 minutes as needed.