Boil Pasta – Cook linguine in salted water until al dente. Drain and set aside.
Brown the Meats – In a skillet, cook beef and sausage until fully browned. Drain excess grease.
Sauté Onion & Garlic – Add onion to the pan, cook until soft. Stir in garlic for 1 minute.
Add Spinach – Stir in squeezed spinach and cook until heated through.
Make the Sauce – In another pan, melt butter and whisk in flour. Gradually add milk and broth. Cook 5–7 minutes until thickened.
Add Cheese & Seasonings – Stir in cream, Parmesan, mozzarella, Cajun, Italian seasoning, paprika, salt and pepper. Stir until smooth.
Combine All – Toss pasta and meat-spinach mix into the sauce. Mix well to coat.
Serve Hot – Garnish with fresh parsley or extra Parmesan.