How to transition away from Friskies?

I got my kitten from a shelter and she was on wet food (Friskies) and free feeding dry. She was on Friskies and had gingivitis.

Got her water additive and took 20 days and transitioned away from Friskies to Open Farm. Her gingivitis cleared and she unwillingly was on Open Farm (kept leaving leftovers). Last week she started protesting Open Farm completely (even rawmix kibbles, freeze dried morsels, and kittycube snack—NOTHING!) since it’s so “bland and healthy” compared to “tasty fast food” Friskies (per vet). She lost weight because she wouldn’t eat AT ALL. I caved and gave her Friskies because I didn’t want her losing weight.

I started trying Tiki Cat baby. Likes it better than Open Farm but still doesn’t compare to Friskies in her opinion. I blame myself for caving in but she now thinks

Protest normal meal = Friskies.

How can I move her away from Friskies? I really don’t want to give her that but I think the healthier premium brands are not as fatty as she likes them. It’s a constant battle trying to give her food she needs vs food she wants.

Please help 😔