At this age, you can change up the menu a bit more:) try different textures and foods and flavours to make it more exciting for her. I’ll be honest, kids approaching 18 months become more picky. Try noodles or pasta or bread. Give her things that are crunchy/crispy, some that are soft and see what she’s more receptive to. Let her hold some things in her hands to feed herself. Meal times need to be more fun and interactive. They like more action and play and fun during this age, so meal times are boring and taking away the play time, unless you make it more fun for them.