Salmon and Shrimp Alfredo Pasta

Ingredients

• 12 ounces spaghetti (or pasta of your choice)
• 1 pound skinless salmon fillets (cut into cubes)
• 1 pound shrimp (peeled and deveined)
• 2 tsp salt
• 1 tsp black pepper
• 2 tsp Cajun seasoning
• 1 tbsp olive oil
• 1 tbsp unsalted butter
• 1 onion (diced)
• 4 garlic cloves (minced)
• 2 tomatoes (deseeded and diced)
• ¼ cup dry white wine (or fish, or vegetable broth)
• 2 tbsp tomato paste
• 1 tsp dried rosemary
• 1 ½ cup heavy cream
• 2 tbsp chopped parsley
• 1 cup grated Parmesan