Golden Cheese Steak Tortellini Casserole Step-by-step instructions

Before you start

Before starting the cooking process, organize and measure all ingredients to ensure a smooth workflow. Dice the steak into uniform bite-sized pieces, roughly half an inch in size, so they cook evenly.

Shred the cheese from blocks and divide it as needed. If using a refrigerated or homemade cheese sauce, ensure it is ready to be mixed. Finally, grease a standard baking dish or prepare a large cast-iron skillet and set it aside.

Instructions

Boiling the Tortellini

1. 1Boil the Tortellini
   Bring a large pot of water to a boil. Add the tortellini and cook for 2 minutes less than the package instructions so they remain firm. Drain the tortellini and set aside.
   Look for The pasta should float to the top but still have a firm bite in the center.
   Tip Undercooking prevents the tortellini from becoming mushy during the baking process.

The tortellini should be boiled in water until they are just undercooked, about two minutes less than the package instructions. They will look plump and float to the surface, but they should still have a firm bite in the center. This prevents them from becoming mushy and waterlogged during the subsequent baking phase.

Searing the Steak

2. 2Sear the Steak
   Heat a pan over high heat. Add the diced steak and sear for 2 to 3 minutes, tossing occasionally, until a deep golden crust forms on all sides and the internal temperature reaches 145°F (63°C). Remove from the heat and let the meat rest for at least 3 minutes.
   Look for A deep brown crust should form quickly on the outside of the steak cubes.
   Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
   Tip Letting the steak rest for 3 minutes allows the juices to redistribute, keeping the meat tender.

The steak cubes should sizzle loudly as they hit the hot skillet, releasing a rich, savory aroma. Within two to three minutes, they will develop a deep brown, caramelized crust on all sides.

When checked with a meat thermometer, the thickest piece must reach 145°F (63°C). After resting for three minutes, the meat will be tender and juicy.

Sauce Mixing and Baking

3. 3Mix Pasta and Sauce
   In a baking dish, combine the cooked tortellini, seared steak, and cheese sauce. Toss the ingredients gently to ensure the pasta and steak are completely coated in the velvety cheese sauce.
   Look for The sauce should evenly coat every piece of pasta and steak.
   Tip Ensure the cheese sauce is warm to facilitate easy mixing.
4. 4Bake to Golden Perfection
   Preheat the oven to 375°F (190°C). Spread the tortellini mixture evenly in the baking dish and top with the shredded cheese. Bake for 15 minutes until the edges are bubbling hot and the top cheese is melted into a golden crust.
   Look for The top should have a golden melted crust with bubbling edges.
   Tip Serve immediately while hot to get the best cheese pull.

Once assembled and baked, the casserole will bubble vigorously around the edges, and the top cheese layer will be completely melted, boasting patches of deep golden brown. Steam should rise gently from the dish when it is pulled from the oven, and a serving spoon should reveal a dramatic, stretchy cheese pull.

Common mistakes

One common mistake is overcooking the tortellini during the initial boiling stage. Because the pasta undergoes a second cooking process in the oven, boiling it fully beforehand will cause it to turn mushy and break apart.

Another frequent error is searing the steak over low heat, which steams the meat in its own juices instead of browning it. Keep the pan smoking hot to achieve a quick, flavorful sear that locks in the juices.

How to tell it’s done

The casserole is perfectly done when the cheese topping is fully melted, bubbly, and beautifully browned, especially around the edges of the dish.

To ensure food safety, the seared steak must reach an internal temperature of 145°F (63°C) when checked with a digital food thermometer before being combined with the other ingredients, followed by at least a three-minute rest. The entire casserole should be piping hot throughout before serving.

• Steaks, chops and roasts: 145°F (63°C) in the thickest part, then a 3-minute rest