Steak in Creamy Cajun Shrimp Sauce

Ingredients

• 1 tablespoon lemon juice
• 1 pound steak (such as strip loin, rib eye, etc.)
• 2 teaspoons dijon mustard
• 4 cloves garlic (chopped)
• 2 tablespoons oil
• 2 tablespoons butter
• 8 ounces shrimp (peeled and deveined)
• 1 cup heavy cream
• 1/4 cup chicken broth (or dry white wine)
• 1 tablespoon cajun seasoning (or to taste)
• 1/4 cup parmigiano reggiano (parmesan cheese, grated)
• 1 tablespoon parsley (chopped)