I don't think cry it out is ever a good option and actually actively not supported on BW, so good on you for not wanting to use it.
7mo is actually a time when night wakings just seem to happen, quite possibly nothing to do with routine, more teeth moving under the gums, baby being more physically active, more mentally alert and going through first steps of SA.
TBH unless the 10-15mins is a grizzly in sleep kind of cry, and she does mostly fall asleep before you go in, if you have to go in 80% of the time, I'd go in straight away, if she knows you respond quickly, it can help the settling back to sleep (for both of you) as 10 mins of you lying there listening will make your sleep even worse.
The other thing is the Pacifier, if she falls asleep using it, it may be time to remove that (although with my DS2) he still didn't sleep better) as it maybe a prop and she expects to have it when she wakes. Another alternative if is to teach her to find it. Have a place in the crib where you have a soft hat and a couple in it, near her ear and when you put her down help her hand to get one and put it in her mouth and over time she will work out how to do it...may take weeks though.