Final answer:
Yes, pesto can be made without nuts by using alternatives such as sunflower seeds or pumpkin seeds.
Step-by-step explanation:
Yes, pesto can be made without nuts. While the traditional recipe for pesto includes pine nuts, it is possible to make nut-free versions of pesto using other ingredients. One popular nut-free alternative is to substitute the pine nuts with sunflower seeds or pumpkin seeds. This allows individuals with nut allergies to still enjoy the flavors of pesto without any health risks.