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Dinner · Part 2 of 3: Instructions

Hearty Beef and Cheese Stuffed Shells Step-by-step instructions

A close-up of a serving of baked beef and cheese stuffed shells on a white plate.
Prep
Cook
Total
Serves
6
Includes 5 min resting

Before you start

Before beginning, ensure all ingredients are measured and ready. Preheat your oven to 375°F (190°C) so it is fully heated by the time assembly is complete. Prepare a workspace with your baking dish, a spoon for filling, and your cooked pasta and browned meat.

Having everything organized will make the stuffing process much smoother and faster. Remember to wash your hands thoroughly after handling raw ground beef and clean your prep area before proceeding to the final assembly of the dish.

Ingredients at a glance (4)
  • 12 oz jumbo pasta shells
  • 1 lb ground beef
  • 24 oz marinara sauce
  • 2 cups shredded mozzarella cheese

Instructions

Boiling and browning

  1. Prepare the components
    Bring a large pot of salted water to a boil and cook the jumbo pasta shells according to package directions until al dente. Drain and set aside. Meanwhile, brown the ground beef in a skillet over medium-high heat until fully cooked. Drain excess fat from the skillet.
    Look for The beef should be browned and no longer pink.
    Safe temperature 160°F (71°C) internal temperature (ground meat)
    Tip Do not overcook the shells as they will soften further in the oven.

The shells should be firm yet tender, and the ground beef should be browned and well-drained. Ensure the meat is seasoned properly during the browning phase to infuse flavor into the filling.

Once the shells are drained, they should be cool enough to handle safely, and the meat should be ready for the stuffing process.

Assembly of shells

  1. Assemble the shells
    Spread a thin layer of marinara sauce on the bottom of a baking dish. Stuff each cooked shell generously with the browned ground beef. Arrange the stuffed shells in the prepared baking dish in a single layer. Pour the remaining marinara sauce evenly over the top of the shells.
    Look for The dish should be filled with shells evenly covered by sauce.
    Tip Use a small spoon to ensure each shell is packed tightly with meat.

Each shell should be packed firmly with the beef mixture without being overstuffed, which could cause them to split. Ensure the baking dish is prepared with a thin base of sauce to prevent sticking. The shells should be arranged neatly in the dish, providing a stable foundation for the final layer of sauce and cheese.

Baking until golden

  1. Bake until bubbly
    Sprinkle the shredded mozzarella cheese generously over the top of the saucy shells. Bake in a preheated oven at 375°F (190°C) for 20 minutes or until the cheese is melted, browned in spots, and the sauce is bubbling around the edges. Let the dish rest for 5 minutes before serving.
    Look for The cheese should be golden and bubbling.
    Tip Place the dish on a baking sheet to catch any spills.

The final phase is complete when the cheese is melted and bubbling, with a slight golden color on top. The kitchen will be filled with the savory aroma of baked pasta and cheese. Before serving, the dish must rest briefly to ensure the sauce thickens to the right consistency, making it ready to plate.

Common mistakes

A common mistake is overcooking the jumbo shells during the boiling phase, which causes them to tear when stuffed. Be vigilant with the timing and remove them from the water as soon as they reach al dente.

Another error is failing to drain the ground beef adequately, which can result in a thin, watery sauce. Finally, neglecting to let the dish rest for at least five minutes after removing it from the oven can make the shells difficult to lift out intact, as the sauce needs time to stabilize.

How to tell it’s done

The dish is considered done when the cheese is fully melted and has developed golden-brown spots across the top. The marinara sauce should be visibly bubbling around the edges of the baking dish, indicating that the heat has permeated the entire assembly.

Since the ground beef was already cooked to 160°F (71°C) during the browning phase, the final bake time is focused on heating the pasta and melting the cheese to achieve the perfect texture and temperature for serving.

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

Coming up in Part 3: common questions

  • Can these be made ahead of time?
  • Why is the pasta sticking to the dish?
  • How can the shells be prevented from breaking?

Also in Part 3: variations (Spinach and Beef, Spicy Sausage), 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)