My mom only eats a few bites or processed food and an ensure a day. How can I get her to eat more?

Keep her favorite foods prepared and in the fridge at ALL times. Go to the dollar store and you can get those individual containers, (microwave safe) to put in the fridge, they hold an individual serving. Canned foods need to be opened and stored this way as well. Make her favorite sandwiches and wrap them in saran wrap, and get some colorful blank stickers so you can write what type of sandwich it is. It sounds like she likes processed foods, so make the storage containers colorful and appealing to her.