Fanfiction often explores Sanji's growth by putting him in challenging situations. Maybe he has to cook in a completely new environment or with limited ingredients. This forces him to adapt and innovate, which in turn shows his determination and resourcefulness. His character also develops as he learns from his mistakes in these situations and becomes an even better chef.
In some fanfictions, Sanji could be involved in a cooking collaboration with other characters from Food Wars. They combine their unique skills and create a revolutionary new cuisine. For example, he might team up with Soma to create a dish that blends French and Japanese cooking styles in an unexpected way. This would not only showcase their individual talents but also how they can learn from each other.
In Food Wars, the story centers around young aspiring chefs at a prestigious culinary academy. They face various challenges and competitions to showcase their cooking skills and unique recipes. The series also explores their personal growth and friendships.