You certainly can start feeding her real foods (not just the puffs and yogurt melts - those are EXPENSIVE!!) One of my son's favorites was sweet potatoes. I would peel them, cut them into small cubes, and steam the cubes. You can do the same with just about anything - apples, pears, carrots, broccoli...just steam them so they are nice and soft.
Bananas are an EASY finger food - slice them and then cut the slices into 4ths. Even if she only has two teeth, she can still "gum" (move her jaw in a chewing motion) to mash up the food.
Other ideas - pasta (rotini ones are easy to pick up even when cut into small pieces - or elbow noodles), avocado, strawberries...if it is soft, small, and easily mashable, it works great! :-)