Hello,
At 7.5 months she should be ready for solids. We started our son out on rice cereal, you could make it with breastmilk.
After one week, you could then introduce orange veggies, such as pureed squash,,,then yellow veggies next. Only introduce one new food per week, to make sure she has no allergies to it. After the cereal, orange and yellow veggies, you could move on to green veggies, then fruits. I introduced fruits last, it has been proven that if you start out on veggies first, they will still be eating them later on. If they get used to to sweet fruit right away, then she may not want to eat the veggies. After the veggies, you can start her on meat pureed with some salt free chicken or veg. stock. She is ready for solids when she no longer has the "extrusion reflex",,this is when you put a spoon of baby food in her mouth, see if she pushes it out with her tongue or is able to keep it in. If she can keep it in, generally around six months,,,then she is ready for solids.
Avoid potential allergens in the first year,,,avoid eggs, strawberries etc...make sure everything is soupy at first, you can dilute with breast milk or stock. You can freeze the baby food in ice cube trays and when she is ready to eat, just pop one or two cubes out and microwave...make sure you test the temperature and stir well. Making homemade baby food is easy, yes it is time consuming, but I did it while working full time! I always give my son organic food as well, it is a little more pricey but I feel it is worth it,,their bodies are so little to tolerate all the preservatives and artificial ingredients in most things.
we are still waiting for our little girl....your daughter is very beautiful....take care, Cathy