Place the flour and black pepper in a food processor, pulse to combine. Add the eggs, water, and olive oil; pulse until dough resembles breadcrumb and all the flour is incorporated.
Transfer dough to a clean board and knead using the palms of both hands until the dough is smooth and forms a ball. Wrap dough in plastic wrap and let rest for 20 minutes.
Divide the dough into four wedges and process through pasta machine several times until thin and smooth.
Use the linguine cutter and run the dough sheets though cutter.
Bring a large pot of salted water to boil over medium-high heat. Carefully drop fresh pasta into boiling water and stir gently to keep from clumping. Cook for 2 – 4 minutes.
Crawfish & Mushrooms:
In a frying pan, melt butter add the mushrooms. Sauté mushrooms 5 minutes or until lightly browned. Reduce heat to low add the crawfish and Cajun seasoning and simmer until mushrooms are tender, 5 to 8 more minutes
Cajun Alfredo Sauce:
Cook onion, pepper, and garlic in large nonstick skillet over medium heat for about 3-5 minutes or until vegetables are soft. Reduce the heat to low and add the cream and cheese simmer until cheese is melted and the sauce thickens. Stir in the Cajun seasoning to blend. Add the crawfish mixture.