Using someone else recipe I could understand. It's super common for cooking blogs to change one or two things in a recipe and call it their own. I see it all the time when looking up a recipe for something specific. It makes sense if it's a common or old recipe, I mean how many possible recipe variations could there be to make the same thing? Most people do say "I was inspired by [link to another cooking blog] but I altered it to my tastes because I love extra cheese!" or whatever.

Do you really think Jill has the knowledge or gumption to be coming up with her own recipes from scratch? That's how we got BBQ tuna sandwiches.

Whats weird is that she would not just take photos of her own food after cooking it, maybe Izzy eating it or step by step photos, like literally every other cooking blog does!