You can just skip the cereal altogether. Have you ever tasted it? It's nasty! Also, if you have a breastfed baby, the idea that veggies must come before fruits doesn't make any sense as breast milk is sweet, so they are already used to sweets.
We didn't introduce solids until 10 mos as I had no interest in feeding DD anything other than real food. By 10 months she was very interested and capable of eating soft chunks and she has only ever been spoonfed applesauce. She started with avocado, then banana, then every kind of veggie you can imagine. Later we gave her oatmeal and now she eats most things (other than nuts). I avoided most grains for a while and was hoping she'd be interested in enough different things that she wouldn't want just white foods-pasta, bread, etc. She still loves all kinds of veggies (though I hear they start getting picky any time now). She's 18 mos.
Cereal should not replace breastfeeding as it is just empty calories with some iron added in. If you really want to feed it to her, you can prepare it with breast milk so it has some nutrition.
The current AAP recommendations, I believe, recommend only breast milk or formula until 6 months. Unless you are in a hurry to wean her from breast milk, there really is no rush on the food. But real food is definitely prefereable to highly-processed cereal. I'm sure she will want to keep up with everything her big sisters are eating soon enough.