Cook bowtie pasta according to package instructions until al dente. Drain and set aside.
- Toss the steak tips with Cajun seasoning until evenly coated.
- In a large skillet, heat olive oil over medium-high heat. Sear the steak tips for about 2–3 minutes per side until browned and cooked to your liking. Remove and set aside.
- In the same skillet, reduce heat to medium and melt butter. Add minced garlic and sauté for 1–2 minutes until fragrant.
- Stir in heavy cream and bring to a gentle simmer. Add grated parmesan and mozzarella (if using) and stir until melted and smooth.
- Season the sauce with salt and black pepper to taste.
- Add the cooked bowtie pasta and toss until fully coated in the sauce.
- Return the steak tips to the skillet and gently mix into the pasta.
- Garnish with chopped parsley and serve hot.