One-Pot Cheesy Beef Rigatoni Casserole for Easy Dinners Step-by-step instructions

Before you start

Before beginning, clear a workspace near your slow cooker. Ensure the appliance is clean and placed on a stable, heat-resistant surface away from any water sources.

Have all your ingredients measured and ready, including the jar of pasta sauce and the seasoning. Having everything prepared before the first step makes the assembly process fast and efficient.

Instructions

Layering the ingredients

1. 1Layering the ingredients
   Place the raw ground beef into the bottom of the slow cooker, crumbling it into smaller pieces with your hands. Add the uncooked rigatoni pasta directly on top of the beef. Sprinkle the entire packet of Italian seasoning over the pasta layer.
   Look for Ensure the beef is evenly distributed at the base of the cooker to promote even cooking.
   Tip Using a slightly higher fat content in the ground beef can provide more flavor as it renders into the sauce during the long cooking process.

The ground beef is spread evenly across the bottom of the slow cooker, with the pasta and seasoning creating a neat, layered structure ready for the sauce to be added.

Simmering the casserole

2. 2Adding sauce and cooking
   Pour the red pasta sauce over the pasta and seasoning. Cover the slow cooker and set it to cook on low for 4 hours. Do not stir the ingredients before starting the cook cycle.
   Look for The sauce should completely cover the pasta to ensure it cooks through properly without drying out.
   Tip Avoid lifting the lid frequently during the cooking process to maintain a consistent temperature inside the vessel.

The sauce is bubbling gently, and the aroma of savory beef and Italian herbs fills the room, signaling that the pasta is absorbing the liquid and flavors as it cooks.

Final serving stage

3. 3Finishing the dish
   Once the cooking time is complete and the beef has reached 160°F (71°C), stir the mixture well to break up the beef and incorporate the sauce. Serve hot.
   Look for The sauce should be thick and the pasta tender when the dish is ready to be plated.
   Safe temperature 160°F (71°C) internal temperature (ground meat)
   Tip Allow the casserole to rest for a few minutes before serving to let the sauce thicken and coat the pasta perfectly.

The beef is fully cooked and tender, the pasta is perfectly al dente, and the sauce has thickened significantly, indicating the dish is ready to be served to your guests.

Common mistakes

A common mistake is failing to ensure the pasta is fully submerged in the sauce, which can lead to some pieces remaining hard or undercooked.

Another error is over-stirring the mixture before the cooking process begins; layering the ingredients is intentional to ensure the beef cooks properly at the bottom.

Additionally, using a pasta shape that is too small or thin can result in a mushy final texture, so stick to sturdy shapes like rigatoni or penne that maintain their integrity during long cooking times.

How to tell it’s done

The dish is considered done when the ground beef has reached an internal temperature of at least 160°F (71°C).

At this point, the rigatoni should be tender but still hold its shape, and the pasta sauce should have thickened into a rich, flavorful coating. Always use a digital meat thermometer to confirm the beef is safely cooked before serving.

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