2 ounces fettuccine
1 tablespoon extra-virgin olive oil
4 cups sliced mixed wild mushrooms
4 cups thinly sliced Brussels sprouts
1 tablespoon minced garlic
1/2 cup dry sherry
2 cups low-fat milk
2 tablespoons all-purpose flour
1/2 teaspoon salt
1/2 teaspoon freshly ground pepper
1 cup finely shredded Asiago cheese, plus more for garnish
Cook pasta in a large pot of boiling water until tender, 8 to 10 minutes. Drain, return to the pot and set aside.
Meanwhile, heat oil in a large skillet over medium heat. Add mushrooms and Brussels sprouts and cook, stirring often, until the mushrooms release their liquid, 8 to 10 minutes. Add garlic and cook, stirring, until fragrant, about 1 minute. Add sherry (or vinegar), scraping up any brown bits; bring to a boil and cook, stirring, until almost evaporated, 10 seconds (if using vinegar) or about 1 minute (if using sherry).
Whisk milk and flour in a bowl; add to the skillet with salt and pepper. Cook, stirring, until the sauce bubbles and thickens, about 2 minutes. Stir in Asiago until melted. Add the sauce to the pasta; gently toss. Serve in large bowl with more cheese, if desired.