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Dinner · Part 2 of 3: Instructions

Cheesy Stuffed Shells in Cast Iron Step-by-step instructions

A cast iron skillet filled with jumbo stuffed shells covered in melted, bubbling mozzarella and garnished with fresh parsley.
Prep
Cook
Total
Serves
4
Includes 5 min resting

Before you start

Before starting, ensure all ingredients are measured and ready on the counter. Boil a large pot of water and have a colander nearby for draining the pasta. Preheat your oven to 375°F (190°C) so it is ready for the final baking stage.

Ensure your cast iron skillet is clean and lightly oiled if necessary to prevent sticking. Having everything prepped in advance allows the process to flow smoothly, ensuring the pasta does not overcook while you are preparing the filling.

Ingredients at a glance (4)
  • 12 oz jumbo pasta shells
  • 24 oz meat sauce
  • 2 cups mozzarella cheese
  • fresh parsley for serving

Instructions

Boiling the Pasta

  1. Boil the pasta
    Bring a large pot of salted water to a boil. Cook the jumbo pasta shells until they are al dente. Drain the pasta using a colander and set them aside to cool slightly.
    Look for The shells should be tender but still firm to the touch.
    Tip Do not overcook the shells, as they will continue to soften during the baking process.

The pasta shells should be tender but still hold their shape when lifted from the water. Ensure the water is well-salted for the best flavor in the pasta itself before you begin the assembly phase.

Drain the shells thoroughly to avoid excess water in the skillet, which could thin out the meat sauce during the baking process.

Filling and Assembly

  1. Fill the shells
    Spoon the meat sauce into each jumbo pasta shell. Arrange the filled shells closely together in the cast iron skillet. Ensure the meat sauce is heated to at least 160°F (71°C) to ensure it is thoroughly cooked.
    Look for The shells should be packed tightly in the skillet.
    Safe temperature 160°F (71°C) internal temperature (ground meat)
    Tip Use a small spoon to ensure the shells are evenly filled without breaking them.

Each shell should be generously filled with the meat sauce. As you arrange them in the skillet, ensure they are nestled closely together so they do not tip over. The skillet should look full and organized, providing a stable base for the cheese layer that will follow in the final stage of the preparation.

Baking to Perfection

  1. Bake and serve
    Top the stuffed shells with mozzarella cheese. Bake in a preheated oven until the cheese is melted and bubbling. Remove from the oven, garnish with fresh parsley, and let the dish rest for five minutes before serving.
    Look for The cheese should be golden and bubbling across the surface.
    Tip Keep a close eye on the cheese to prevent it from burning.

The cheese should be completely melted and bubbling across the entire surface of the skillet. The edges of the sauce should be slightly darkened and thickened. Once you remove the pan from the oven, the aroma of toasted cheese and savory herbs should be prominent, indicating that the meal is ready to be garnished and served.

Common mistakes

A common mistake is overcooking the jumbo shells in the boiling water. They should be just al dente, as they will soften significantly while baking in the sauce. Another error is failing to ensure the shells are arranged tightly, which can cause them to tip over during the baking process.

Finally, ensure the cheese is spread evenly across the top to prevent uneven melting, which can lead to some areas being perfectly browned while others remain under-melted.

How to tell it’s done

The dish is finished when the cheese is fully melted, bubbling, and has developed a light golden-brown color on top. Because the meat sauce is heated through during the assembly and baking phase, you are primarily looking for the cheese to reach the desired level of melt and for the entire skillet to be heated through.

Ensure the internal temperature of the meat mixture reaches at least 160°F (71°C) to confirm it is safe to serve. Allow the skillet to rest for five minutes before serving to let the sauce set slightly.

  • Ground meat: 160°F (71°C) in the thickest part

Coming up in Part 3: common questions

  • Can this be made ahead of time?
  • What is the best way to prevent the shells from breaking?
  • Is it possible to use a different type of cheese?

Also in Part 3: variations (Vegetarian Spinach and Ricotta, Spicy Sausage and Pepper), storage and make-ahead, and the printable recipe card.

Up next · Part 3 of 3

2 variations · storage & make-ahead · 3 answers · printable card

Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)