Started food.

Started baby girl on food today. Well food other than rice cereal. Got the green light from my pediatrician so please don't tell me she is too young. She's 5 months. My question is do I mix it with the cereal or on its own? I just did sweet potatoes on its own and it seemed to do the trick. But then I'm wondering when will she eat the rice cereal now that she's supposed to have for the iron. Do I feed her solids more than once a day? Or do I mix it? We started food before 6 months because she's always hungry and reaching for our food and sits up on her own. Her doctor said not to force it but if we offer and she's interested to go with it but only vegetables for now.

Happy baby girl 💜