Final answer:
The nurse should recommend tofu and soy products for the child adhering to a vegetarian diet with superficial partial-thickness burns, as they have the highest protein content among the given options.
Step-by-step explanation:
A nurse caring for a child on a vegetarian diet with superficial partial-thickness burns should recommend food choices high in protein content to aid in the healing process. The option containing tofu and soy products would be the best recommendation, as these are known for their high protein concentrations. Vegan sources of protein like lentils, chickpeas, quinoa, black beans, nuts, and seeds are also beneficial. It is important to ensure that the child's diet includes a variety of these protein sources, as different plant proteins provide different essential amino acids required for a complete protein intake.