I am having trouble getting my 6m old to get se...

I am having trouble getting my 6m old to get serious about solids. She has been having about 1/4 - 1/2 tablespoon of cereal for nearly 3 weeks but fights to get this much in and is not close to interested in any more. I have had to stop vegies for now (which she fought against anyway) as they seem to cause pain when trying to get her to sleep. She is breastfed and feeds about every 2-3 hours during the day, especially now that it is hot. Any ideas on how to get them eating. She is always very keen to try and get our food but not hers. Not sure if it makes any difference, but I have only given her vegies that I have cooked myself.