Avocado
“Many people don’t realize that you can grill avocado,” says Rizzo. “Just cut it in half, remove the pit and throw it face-down on the grill. It will get these beautiful grill marks and become warm and creamy.” Avocado is a source of heart-healthy monounsaturated fat, fiber, vitamin K, and folate. A recent study from Tufts University also found that an avocado a day improved brain function in older adults.