Hi
All kids will be fussy in eating. As they grow they become more playful and they become more fussy with eating.
If her weight is okay for her age, there should be no worries.
During weaning, fussiness to new food is normal. Many kids will have food preferences according to taste.
When ever you introduce new food items give them a minimum of 3 to 4 days to get used to the new taste.
You can give mashed boiled vegetables, mashed fruits, soups, juices, Dal rice, Dalia, Porridge, idli, dosa etc according to your choice.
Though we say no added sugar or salt in the initial months of weaning, since she is 9 months old now, you may add them minimally according to her taste.
In the food she consumes, you may fortify with ghee/ oil/ butter. You can also add powdered nuts and raisins to them. These help in improving the calorie of the food consumed.
You can also start her on eggs, yellow portion initially, followed by full egg in half boiled form.
Non vegetarian food can also be slowly introduced now.
In feeding of infants, patience is needed.
Hope my answer helps.
Happy
parenting.