1. In a large skillet, heat olive oil over medium-high heat. Add ground beef and Italian sausage. Cook until browned and fully cooked through. Drain excess fat.

2. Lower the heat to medium. Add butter and minced garlic to the pan. Sauté until garlic is fragrant, about 1–2 minutes.

3. Pour in heavy cream and bring to a gentle simmer. Stir in Parmesan cheese and cook until melted and sauce starts to thicken.

4. Meanwhile, cook bowtie pasta in salted water until al dente. Reserve 1/2 cup of pasta water and then drain.

5. Add cooked pasta and spinach to the sauce along with the browned meat. Toss everything to combine. Use reserved pasta water to thin the sauce as needed.

6. Season with salt, black pepper, and red pepper flakes (if using). Let it all simmer together for a few minutes until heated through.

7. Serve hot, topped with extra Parmesan and fresh parsley if desired.