This creamy steak bites penne is the ultimate comfort dish, combining tender seared steak, perfectly cooked pasta, and vibrant broccoli in a rich cheddar Alfredo sauce. It’s a hearty, satisfying meal that brings together bold flavors and a silky, cheesy finish in every bite.

Why You’ll Love This Recipe

This recipe delivers a perfect balance of protein, vegetables, and indulgent creaminess. The steak bites are flavorful and juicy, while the broccoli adds freshness and texture. The cheddar Alfredo sauce is rich without being overwhelming, coating every piece of pasta beautifully. It’s also a convenient slow cooker meal, making it ideal for busy days when you want something comforting with minimal effort.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

12 oz penne pasta
1 lb sirloin steak, cut into bite sized cubes
1 teaspoon salt
1 teaspoon black pepper
1 teaspoon garlic powder
1 teaspoon paprika
2 tablespoons olive oil
3 cups broccoli florets
2 cups heavy cream
1 cup whole milk
1 1/2 cups shredded cheddar cheese
1/2 cup grated Parmesan cheese
3 cloves garlic, minced
2 tablespoons butter
1 tablespoon cornstarch mixed with 2 tablespoons water

Directions

Start by seasoning the steak cubes with salt, black pepper, garlic powder, and paprika. Heat olive oil in a skillet over medium-high heat and sear the steak bites until browned on all sides. Once done, transfer the steak into a slow cooker.

Add the broccoli florets, minced garlic, butter, heavy cream, and milk into the slow cooker. Stir gently to combine all the ingredients. Cover and cook on low for 3 to 4 hours, until the broccoli becomes tender and the flavors blend together.

While the slow cooker is finishing, cook the penne pasta according to package instructions until al dente. Drain and set aside.

Once the slow cooker mixture is ready, stir in the shredded cheddar cheese and grated Parmesan cheese. Add the cornstarch mixture to help thicken the sauce, stirring well until smooth.

Add the cooked pasta into the slow cooker and mix thoroughly so the sauce coats everything evenly. Let the dish sit for about 10 minutes before serving to allow the sauce to fully thicken and settle.

Servings and timing

Servings: 6

Preparation time: 15 minutes
Cooking time: 3 to 4 hours (slow cooker)
Total time: approximately 3 hours 20 minutes to 4 hours 20 minutes

Calories: 620 per serving
Net carbs: 38g
Protein: 38g
Fat: 34g

Variations

For a lighter option, replace the sirloin steak with chicken breast while keeping the same seasoning. You can also add sautéed mushrooms for a deeper, earthy flavor or stir in fresh spinach toward the end for added nutrition. If you prefer a sharper taste, use extra aged cheddar or mix in a bit of mozzarella for a stretchier texture.

Storage/Reheating

Store leftovers in an airtight container in the refrigerator for up to 3 days. When reheating, add a splash of milk or cream to restore the sauce’s creamy consistency. Warm gently on the stovetop over low heat or in the microwave in short intervals, stirring in between to prevent the sauce from separating.

FAQs

Can I use a different cut of steak?

Yes, ribeye or strip steak works well, but sirloin is a great balance of flavor and tenderness.

Can I make this without a slow cooker?

Yes, you can simmer everything in a large pot on low heat for about 30–40 minutes until the broccoli is tender.

How do I keep the sauce from becoming too thick?

Add a bit of milk or cream when reheating or if it thickens too much during cooking.

Can I freeze this dish?

It’s not ideal because cream-based sauces can separate after freezing, but it can be done if reheated gently.

What pasta shapes work best besides penne?

Fusilli, rigatoni, or farfalle all hold the sauce well.

Can I make it gluten-free?

Yes, simply use gluten-free pasta and ensure your cornstarch is certified gluten-free.

How do I know when the steak is properly seared?

It should have a browned crust on the outside while remaining juicy inside.

Can I add more vegetables?

Yes, carrots, peas, or zucchini can be added depending on your preference.

Is it possible to make it lower in fat?

You can use half-and-half instead of heavy cream, though the sauce will be slightly less rich.

Why let it sit before serving?

Allowing it to rest helps the sauce thicken and cling better to the pasta.

Conclusion

Creamy Steak Bites Penne with Broccoli & Cheddar Alfredo is a comforting and satisfying dish that’s perfect for family dinners or meal prep. With its rich sauce, tender steak, and balanced ingredients, it offers both flavor and convenience in one pot. It’s a recipe you’ll come back to whenever you’re craving something hearty and indulgent.

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