Step 4: Prepare Sauce
Mix marinara sauce with tomato sauce and Italian seasoning.
Step 5: Assemble
Spread a layer of sauce in a baking dish.
Fill each shell with the beef-ricotta mixture and place in dish.
Pour remaining sauce over shells.
Step 6: Add Topping
Sprinkle mozzarella and Parmesan on top.
Step 7: Bake
Bake at 180°C (350°F) for 25–30 minutes until bubbly and golden.
