@JennyS88523
If your Mom wants to do some cooking but doesn't want to buy, keep, store and prepare a meal daily, she may like the Apron Meals which many Publix grocery stores prepare and carry. They also deliver. (IF SHE HAS THIS CHAIN AVAILABLE IN HER AREA).
They vary by store and by date - I think they try to carry those that are most popular often.
Some are available with the complete meal - meat and veg. Others are just by the meat and then you can add veg or salad.
Don't think you will find this type of meals available for just (1) - minimum is (2).
Tell her to invite a friend.
Here are some examples from this weeks flyer -


