Creamy Mushroom Stroganoff

INGREDIENTS

8 oz

medium pasta shells

3 tbsp

unsalted butter

1 1/2 lb

cremini mushrooms, thinly sliced

large shallots, diced

Kosher salt and freshly ground black pepper,

3 cloves

garlic, minced

4 tsp

chopped fresh thyme

2 1/2 tbsp

all-purpose flour

2 cups

beef stock

1 1/2 tsp

Dijon mustard

3/4 cup

sour cream

2/3 cup

freshly grated Parmesan

2 tbsp

chopped fresh parsley leaves