People underrate canned veggies in regards to healthy eating. They're really not bad at all from a health perspective, and can often taste very fresh.

Pineapples, pears, peaches are great canned. Artichoke, corn, beans, string beans, spinach, and tomatoes are also good canned products in my experience.

I'm not hating on fresh: big leafy Romaine Lettuce is best fresh, as are onions. But certain foods hold really well in a can, and its extremely convenient to mix-and-match storage strategies. (Ex: Use that Romaine Lettuce for salads this week, and canned corn next week)