Starting solids question

So my daughter went to her 6 month appoibtment and the doctor said ok to start on solids. However I asked when do I start feeding twice a day , three times a day etc and there was no clear answer. She also told me to feed before a bottle but everyone said to feed after. She also said to feed in the morning when first trying a new food to watch for an allergy but her nanny feeds her in the morning and I want to ge the one to try the foods with her. I don’t feed her until her last bottle at around 6:30 pm. Any advice??