01 -
Cut 1 1/2 lbs sirloin steak into 1-inch tips. In a medium bowl, toss the steak tips with 2 tbsp Cajun seasoning until evenly coated. Set aside while you prepare the other components for your Cajun Steak Tips in Cheesy Rigatoni Parmesan Sauce.
02 -
Bring a large pot of salted water to a rolling boil. Add 1 tsp salt and 12 oz rigatoni pasta. Cook according to package directions until al dente, typically 8-10 minutes. Drain the pasta well and set aside, reserving about 1/2 cup of pasta water.
03 -
Heat 1 tbsp olive oil and 1 tbsp unsalted butter in a large skillet over medium-high heat. Add the seasoned steak tips in a single layer, working in batches if necessary to avoid overcrowding. Sear for 2-3 minutes per side until browned and cooked to your desired doneness. Remove steak and set aside.
04 -
In the same skillet (or a separate saucepan), melt 2 tbsp unsalted butter over medium heat. Whisk in 2 tbsp all-purpose flour and cook for 1 minute, stirring constantly, to create a roux. This forms the base for your rich Parmesan sauce.
05 -
Gradually whisk in 2 cups whole milk and 1/2 cup heavy cream until smooth and no lumps remain. Bring the mixture to a gentle simmer, then reduce heat to low. Stir in 1 cup freshly grated Parmesan cheese, 1/2 cup shredded sharp cheddar cheese, 1/2 tsp garlic powder, 1/4 tsp onion powder, and 1/2 tsp black pepper until the cheeses are fully melted and the sauce is smooth and creamy.
06 -
Add the cooked rigatoni pasta and seared Cajun steak tips to the cheesy Parmesan sauce. Toss gently to combine, ensuring everything is coated. If the sauce is too thick, add a splash of reserved pasta water. Season with salt and pepper to taste. Garnish with 1/4 cup fresh parsley and 2 green onions. Serve immediately and savor your Cajun Steak Tips in Cheesy Rigatoni Parmesan Sauce.