The term "mushroom caps" refers to a type of food preparation where the top part of a mushroom is used as an individual serving. This can be done by removing the stem from a whole mushroom and then cooking it until it forms a cap with a soft, tender texture that can be eaten on its own or added to dishes like pasta or salads. Mushroom caps are often enjoyed as a vegetarian or vegan alternative to meat-based entrees due to their meaty flavor and texture.