Dinner · Part 2 of 3: Instructions
Classic Cheesy Johnny Marzetti Casserole Step-by-step instructions

- Prep
- Cook
- Total
- Serves
- 6
Before you start
Before you start, gather all your ingredients and ensure your oven is preheated to the correct temperature. Having your cheese shredded and your pasta measured out saves significant time once you start cooking.
Prepare your 9x13 inch baking dish by lightly greasing it if desired, although the fat from the beef usually keeps things from sticking. Make sure your workspace is clean and you have your large skillet and colander ready for the beef and pasta prep, ensuring a smooth flow from stovetop to oven.
Ingredients at a glance (3)
- 1 lb ground beef
- 1 lb elbow macaroni
- 2 cups shredded cheddar cheese
Instructions
Stovetop Preparation
- Prepare the BaseBring a large pot of salted water to a boil and cook the macaroni according to the package directions until al dente. While the pasta cooks, brown the ground beef in a large skillet over medium-high heat until fully cooked through, reaching an internal temperature of 160°F (71°C). Drain any excess grease from the skillet.Look for The beef should be browned and no longer pink, while the pasta remains firm to the bite.Safe temperature 160°F (71°C) internal temperature (ground meat)Tip Do not overcook the pasta, as it will continue to soften during the baking process in the oven.
The ground beef should be deeply browned and fragrant, with no traces of pink remaining. The macaroni should be cooked through but still hold its shape perfectly. After draining the beef, the mixture of meat and pasta should look uniform, with the meat distributed evenly throughout the noodles, ready for the final assembly in the baking dish.
Assembly and Layering
- Assemble the CasserolePreheat your oven to 375°F (190°C). Combine the cooked pasta and browned ground beef in a large bowl or directly in the baking dish. Spread the mixture evenly into your 9x13 inch baking dish to ensure consistent cooking throughout the entire casserole.Look for The mixture should be well combined and evenly distributed to avoid dry patches in the final dish.Tip Using a wide mixing bowl makes it easier to incorporate the ingredients thoroughly before transferring them to the baking dish.
The pasta and beef should be mixed thoroughly so that every bite contains a balanced ratio of ingredients. When transferred to the baking dish, the mixture should be spread into an even layer, creating a flat surface for the cheese.
This ensures that the heat penetrates the entire dish consistently during the baking phase, preventing cold spots.
Final Baking
- Bake to PerfectionTop the pasta and beef mixture with the shredded cheddar cheese. Place the dish in the preheated oven and bake for 15 to 20 minutes, or until the cheese is melted and bubbling with golden brown spots. Remove from the oven and let it rest for 5 minutes before serving.Look for The cheese should be completely melted, bubbly, and showing light golden brown spots on the surface.Tip If the cheese is not browning enough, you can set the oven to broil for the final minute, but watch it closely to prevent burning.
The casserole is finished when the cheese has transformed from individual shreds into a cohesive, molten layer. You should see active bubbling around the edges of the dish and a beautiful golden color on top. Once you see these signs, remove it from the oven and allow it to rest for five minutes to let the cheese set slightly.
Common mistakes
A common mistake is overcooking the pasta before it even hits the oven. Ensure you drain the pasta while it is still al dente because it will absorb moisture and continue to soften while baking.
Another error is failing to drain the beef properly; excess grease can pool at the bottom of the baking dish, leading to a heavy, oily texture. Finally, avoid rushing the baking time; the cheese needs enough time to reach that bubbly, golden state, which provides the essential contrast to the tender pasta beneath.
How to tell it’s done
The casserole is done when the cheese is completely melted, bubbling across the entire surface, and has developed light golden brown spots. The edges should show the pasta and beef mixture gently simmering.
An internal temperature of 160°F (71°C) for the ground beef ensures it is fully cooked, though as it is mixed with the pasta, visual cues of bubbling cheese and heated through ingredients are the primary indicators that your meal is ready to be pulled from the oven.
- 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)