We're talking about the class of products that are covered in this video, with an emphasis on canned food. Canned foods are often cheap, yummy and nutritious: tuna, tomatoes, and spinach make a great salad.
Tomatoes and tuna in canned foods make good food choices not just because they taste good but are nutritious too. But others like canned soup and veggies contain so much bad stuff you want to avoid.