What do we call food such as frozen, canned, and jar baby food, as well as products that consumers further process?

The correct term for foods like frozen, canned, and jarred baby food, along with items that consumers may further process, is "Packaged Processed Food." This category encompasses foods that have undergone processing to enhance their shelf life, convenience, or flavor and are typically sold in various forms, such as cans, jars, or packages. They are designed for easy consumption or preparation, reflecting the modern consumer's demand for quick and accessible meal solutions.

Packaged processed foods include a range of products that are modified for safety, preservation, and convenience, making them popular choices for busy families and individuals. Items in this category often retain their nutritional value while combining the benefits of long shelf life.

Prepared food, convenience food, and quick meals may closely relate to processed food but do not fully encompass the full range of products noted in the question, particularly the emphasis on packaging and the potential for further processing by consumers.