In a large skillet, melt butter over medium-high heat. Add andouille, and cook until edges are crispy, 5 to 7 minutes. Remove andouille using a slotted spoon, and let drain on paper towels, reserving drippings in skillet.
Add onion, bell pepper, celery, and Cajun seasoning to drippings; cook until vegetables are browned and tender, about 8 minutes. Add garlic, and cook for 1 minute. Add wine and lemon juice. Bring to a boil; reduce heat to medium, and simmer until liquid is reduced by half, 10 to 15 minutes. Add crawfish and cream; cook for 2 to 3 minutes.
Reduce heat to low, and stir in pasta and cheese. If sauce is too thick at this point, add reserved pasta liquid, ¼ cup at a time, until desired consistency is reached. Stir in parsley just before serving. Garnish with cheese and parsley, if desired.
Recipe by Louisiana Cookin' at https://louisianacookin.com/crawfish-andouille-pasta/