In this task, you have to identify the named entities (NER) which are the ingredients required given its directions. Named entities are the names of the items without their quantity.
One example: Preheat oven to 375 degrees., Boil syrup, sugar and shortening over medium heat, stirring constantly., Remove from heat., Gradually stir in flour and nuts., Drop by teaspoonfuls about 3 inches apart on lightly greased cookie sheet., Bake 5 to 6 min., Remove from oven and let stand 5 min, before removing from sheet., May be rolled into cylindrical shape while still hot., If cooled too much, return to oven for a minute., Yield: 4 dozen cookies.
Solution is here: flour, nuts, corn syrup, shortening, brown sugar
Explanation: This is a good example, as we see the NER is generated correctly from the directions.

Now, solve this: Preheat oven to 400F., Butter two shallow 2-quart baking dishes (or equivalent)., In a large pot of boiling salted water, cook pasta 3 minutes short of al dente (according to the al dente instructions listed on the package); drain pasta, and return to pot., In a large nonstick skillet, heat oil over medium-high., Brown Italian sausage until cooked all the way through., Remove from heat to cool., In a 5-quart Dutch oven or heavy pot, melt butter over medium., Once melted add flour and garlic; cook, whisking, 1 minute., While whisking, gradually add milk; bring to a simmer, add in the freshly grated nutmeg, whisking frequently until thickened., Add mushrooms, sausage and tomatoes; cook 1 minute., Off heat, gradually stir in provolone and 1/2 cup Parmesan., Add pasta to pot; season with salt and pepper., Divide pasta mixture between baking dishes; sprinkle each with the remaining cup Parmesan., Bake, uncovered, until top is golden and bubbling, about 20-25 minutes., Let stand 5 minutes before serving., For Freezing: Prepare to the point where you sprinkle the top with Parmesan and then let pasta cool., Cover tightly with foil, and freeze up to 3 months., Reheating Frozen Pasta: Preheat oven to 400 degrees F, and bake (still covered in foil) on a rimmed baking sheet until center is hot, about 1 1/2 hours., Remove foil; bake until golden, about 15 minutes more.
Solution:
Olive Oil, Sausage, Unsalted Butter, All-Purpose Flour, Garlic, Milk, Fresh Nutmeg, fluid Crimini, Tomatoes, Provolone Cheese, Parmesan Cheese, Salt