Oliver’s Vegetables by Vivian French (1995)

On a visit to his grandparents’ house, Oliver wants to eat only French fries. Grandpa tells him that he may look in the garden for potatoes, but that he must eat what he finds, whatever it may be. On the first evening, Oliver pulls up carrots and discovers that he likes them. On successive days he discovers spinach, rhubarb, cabbage, beets, and peas. A fun book about eating from the garden.