1. Adding a pinch of salt to the soup makes it tasty.
(A small amount of something like salt is measured in a "pinch.")

2. The cook bought five kilos of beef for the steak.
(A large amount of beef is measured in "kilos.")

3. She relaxed with a cup of green tea and the newspaper.
(A drink like tea is measured in "a cup of.")

4. Frank tried a bowl of eel soup and some spring rolls.
(Soup is often served in "a bowl.")

5. Would you like to try a piece of pancake?
(A single portion of something like a pancake is measured as "a piece of.")