so it's best to freeze lettuce for smoothies, soups and stews—not for recipes that rely on fresh lettuce leaves like salads. The same goes for other leafy greens like spinach and kale ...

Some people like to freeze extra lettuce and use it in things like soup, quiche, or smoothies, but in the Test Kitchen, we always recommend using fresh greens whenever possible,” Brekke says.

Sandwiches: Lettuce leaves add crunch and freshness to sandwiches and burgers. Smoothies: Some types of lettuce, like romaine, can be blended into smoothies for added nutrients. Types of Lettuce ...