Heat oil in a large pot over medium-high heat
Brown the ground beef, breaking it apart as it cooks
Add 1.5 tbsp butter, mushrooms, and shallots; cook until softened
Stir in smoked paprika, salt, pepper, garlic, and fresh thyme
Add remaining 1.5 tbsp butter and flour; stir to combine
Pour in dry white wine and beef broth
Add pasta and bring to a simmer
Cook until pasta is tender, about 10-15 minutes
Remove from heat and stir in sour cream, heavy cream, Dijon mustard, and Worcestershire sauce
Fold in Parmesan cheese and frozen peas if desired
Taste and adjust seasonings as needed
Serve topped with fresh chives and Parmesan cheese
