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Dinner · Part 2 of 3: Instructions

Creamy Steak Bites Penne: A Quick One-Skillet Dinner Step-by-step instructions

A rustic skillet filled with creamy penne pasta, seared steak bites, and melted cheese.
Prep
Cook
Total
Serves
4
Includes 5 min resting

Before you start

Before starting, ensure all ingredients are prepped and ready to go, as the cooking process moves quickly. Cut the steak into uniform one-inch cubes to ensure even cooking. Dice the bell peppers into pieces of similar size to the pasta.

Shred the cheese if it is not already shredded. Have a colander ready for the pasta and ensure the skillet is clean and dry. Preparing all components in advance allows for a smooth transition between the searing and assembly phases.

Ingredients at a glance (4)
  • 1 lb sirloin steak, cut into bite-sized pieces
  • 2 cups bell peppers, diced
  • 12 oz penne pasta
  • 1 cup shredded cheese

Instructions

Searing the protein

  1. Sear the steak
    Heat a large skillet over medium-high heat. Add the bite-sized steak pieces and sear until browned on all sides. Once the steak reaches an internal temperature of 145°F (63°C), remove the pieces from the skillet and let them rest for at least 3 minutes.
    Look for The steak should be well-browned and crusty on the outside.
    Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)
    Tip Ensure the pan is hot enough before adding the meat to get a good sear.

The steak bites should be deeply browned on the outside with a visible crust. The skillet will have savory browned bits stuck to the bottom, which are vital for the flavor of the dish. The meat should be removed from the heat to rest, ensuring it stays juicy and tender for the final assembly.

Developing the base

  1. Cook the vegetables and pasta
    In the same skillet, sauté the diced bell peppers until they are softened. Meanwhile, cook the penne in a large pot of boiling salted water according to the package instructions until al dente. Drain the pasta thoroughly and add it to the skillet with the sautéed peppers.
    Look for The peppers should be tender and slightly charred.
    Tip Save a small amount of pasta water to help adjust the sauce consistency if needed.

The bell peppers should be soft and slightly charred, having absorbed the residual flavor from the steak. The penne, once added, should be well-drained to avoid watering down the final dish. The mixture should smell fragrant and savory, providing a clean canvas for the cheese that follows in the final phase.

Binding the sauce

  1. Combine with cheese
    Add the seared steak bites back to the skillet with the pasta and peppers. Fold in the shredded cheese. Stir constantly until the cheese is melted and creates a creamy, stretchy coating over the penne and steak.
    Look for The cheese will melt and become stretchy as it is stirred into the hot pasta.
    Tip Reduce the heat to low when adding the cheese to prevent the sauce from breaking.

The cheese should form a thick, glossy coating that clings to every strand of pasta. The steak bites should be tender and perfectly incorporated.

The entire dish should look cohesive, with the cheese fully melted and creating those signature strings when stirred or served. The aroma should be rich, savory, and deeply comforting.

Common mistakes

A common mistake is overcrowding the skillet when searing the steak, which causes the meat to steam rather than brown. Always sear in batches if necessary to maintain high heat.

Another error is overcooking the pasta before adding it to the skillet; it should be slightly firm as it will continue to cook in the residual heat. Finally, adding the cheese while the heat is too high can cause the sauce to separate or become grainy instead of smooth and creamy.

How to tell it’s done

The dish is done when the steak has reached an internal temperature of at least 145°F (63°C) and the pasta is cooked to an al dente texture. The sauce should be smooth, thick, and fully coats the ingredients without looking oily or separated.

When lifted with a spoon, the cheese should appear stretchy and well-integrated into the pasta base. The bell peppers should be tender yet still maintain a slight bite.

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

Coming up in Part 3: common questions

  • Can the steak be replaced with another protein?
  • Why does the cheese sometimes separate or clump?
  • Is it necessary to rest the steak?

Also in Part 3: variations (Spicy Steak Penne, Mushroom Steak Penne), 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)