7 month old baby will not eat solids. She drinks approximately 16 oz of formula milk a day but refuses solids. Should I reduce her milk intake?

Needs 20-30 ozs form. Should be getting 20-30 ozs, plus introducing new textures ,start even with Cheerios for self-feeding. Make sure she is not anemic.
NO. Since she is not taking solids yet, it is important to keep her caloric intake at appropriate levels for adequate nutrition, so continue the milk for now. Speak with your Dr. about introducing different solids one at a a time and eventually she will like one of them, it takes time at her age. best wishes.