I would stick to the same meals. Is it that she does not like to chew ?
My daughter only enjoys food with certain textures like fish pie, cottage and shepherds pie . If we have chicken it’s got to be cut up tiny and hidden in mash and gravy. Just make sure you give her calcium products like petite filous . I dont make a fuss but my one can eat mash every day so try something that is easy to feed her with that has lumpy bits . Get a new place mat and get it out at meal times and use a dinner bell so she know it meal times . This worked for me