Nutritional yeast is a type of yeast that is often used as a cheese substitute in vegan and vegetarian cooking. It is a deactivated yeast that has a nutty, cheesy, and savory flavor, and is a good source of vitamins, minerals, and protein.

Some popular recipes that use nutritional yeast include:

1. Vegan Mac and Cheese - A creamy, comforting dish that can be made using nutritional yeast to add a rich, cheesy flavor without the use of dairy.
2. Cheesy Popcorn - Simply toss popped popcorn with melted butter or oil and sprinkle with nutritional yeast for a tasty snack.
3. Vegan Alfredo Sauce - Nutritional yeast can be used to create a creamy, cheesy sauce for pasta dishes without using any dairy products.
4. Cheesy Garlic Bread - Spread garlic butter on toasted bread and sprinkle with nutritional yeast for a delicious and savory twist on classic garlic bread.
5. Vegan Parmesan Cheese - Blend nutritional yeast with almonds, salt, and garlic powder to create a vegan version of parmesan cheese that can be sprinkled on pasta, pizza, or salads.