Feeding my 9 month old


So my daughter has always been breastfed. Since about 6 months I've been trying to feed her the baby gerber food. She barely eats it, I offer it to her morning, lunch and at night but she is mostly interested in breast. She is 9 months now and has gained 2 lbs since December but I'm concerned because I was looking it up and i read that she could become malnourished after 8 months if she is not eating enough solids. She doesn't seem like she isn't getting enough to eat but I'm just super concerned because at this point I can't even get her to eat half a tiny gerber jar in an entire day. Has anyone else gone through this? I also should add we are vegan.