Buttery Garlic Langostino on Pasta

Langostino or Squat Lobster is delicious and, for lobster, reasonably priced.  I get peeled and cooked frozen tails from Costco but I know Trader Joe's sells them as well.  The tails are small enough that you don't have to cut them up like full size lobster tails, just treat them like large shrimp.  Using langostino takes regular a regular shrimp dish up a notch but this dish works very well with shrimp.  Linguini or angel hair pasta work best in this dish.

2 lbs
peeled and cooked langostino lobster tails or shrimp
1 lb
linguini or angel hair pasta
2 tbl
2 tbl
olive oil (the best you have)
1 lb
sliced mushrooms
fresh ground black pepper
garlic cloves, finely chopped
1 tsp fresh rosemary, chopped

Thaw the langostino tails.  Heat some salted water and start cooking the pasta.  Heat a large frying pan over medium heat and add the olive oil and butter.  When the oil/butter is hot enough for the butter to foam add the garlic and cook for 1 minute.  Add the mushroom, salt, pepper, rosemary, and paprika and cook until the mushrooms give up their water.  Add the langostino and cook until they are heated through.  By this time the pasta should be cooked and drained.  Add it to the frying pan and stir everything together well.  Serve.