Watch: See our tips on healthy foods to stock your freezer. ADVERTISEMENT (Details on how to prepare 16 fruits and vegetables to freeze to follow.) Freezing. When you are shopping for juicy strawberries or fresh greens, you may not stop at the frozen food aisle. Frozen fruit and vegetables often don't. Fresh and frozen fruits and vegetables are processed and stored They're full of vitamins, minerals and antioxidants, all of which can improve health. Eating more fruits and vegetables may even help protect against heart.