Why would you want to delay? It's not as if she will be on 3 full meals a day by then anyway. At 7 months you would want to be giving finger foods too so you could just guve her something to hold while you eat plus things like yogurts and bananas are good portable foods
6 months is approximate, so baby might only be on one solid meal a day by 7-7.5months. If you're having a meal with carrots you can give some to baby at whatever consistency she can manage. Or take a small tub of veg/ banana etc with you when you go out.