Dinner · Part 2 of 3: Instructions
Hearty Beef and Cheese Stuffed Shells Step-by-step instructions

- Prep
- Cook
- Total
- Serves
- 6
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
- Prepare the componentsBring 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
- Assemble the shellsSpread 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
- Bake until bubblySprinkle 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
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)