This easy recipe for Leftover Shrimp Boil Fisherman's pie is a great way to use the leftovers from a shrimp boil in a rich and hearty casserole. Topped with mashed potatoes and baked, this dish throws in cajun spice.
Melt ½ stick butter in a large skillet. Once bubbling, add chopped onion and celery. Saute for 3-5 minutes, until translucent. Add garlic and cook for another 30 seconds.
Stir flour into the veggie mixture; allow the flour to cook for a minute or two. Whisk in heavy cream until a thick sauce forms. Stir in tomato paste, chicken stock, worcestershire sauce, and seasonings. Fold in shrimp and ½ cup parmesan cheese.
Pour shrimp mixture into a greased 9x13" baking dish. Set aside.
In a separate bowl, mash together potoatoes, butter, sour cream, parmesan cheese, milk, cajun seasoning, and salt. Spread this mixture on top of shrimp base.
Bake at 350 degrees for 30-35 minutes, until shrimp mixture starts to boil. Turn on the broiler and bake for an additional 5 minutes to brown tops of potatoes.