Oh, sorry, I forgot to add this. I met a lactation consultant who said her 4th baby wasn't interested at all in solid foods for a LONG time, and he ended up exclusively breastfed past 12 months! With 3 other kids to chase around, she said it worked out for her, but she was surprised. The only extra thing she gave him was a multivitamin for the vitamin D and iron.
http://www.kellymom.com/nutrition/solids/solids-when.htm
Lots of infants have NO interest at all until AFTER 10 or 12 months, believe it or not. I'd put everything away and not even try again until she's literally grabbing your food off your plate or off your fork at dinnertime. Seriously. I know that sounds wacky, but if you're willing to wait, she WILL let you know. Both of my babies started going completely berserk around the dinnertable and snatched at my food. If you keep trying every day, or even every week, it will just frustrate both of you to no end. And it's not necessary, because there is literally NO solid food right now that will be healthier than breastmilk. Or even formula!
And truthfully, it's a lot easier for you. The early stages of solid foods are MESSY and a lot more hassle than just latching her on. Then you have to worry "was there any reaction" to the new food, "is she still getting mostly breastmilk?", "has she already had this or that food?" "has it been 3 days since she's tried a new food?"
"what's in this besides sweet potatoes?" "is it too soon for strawberries?" Etc.
If you're concerned about iron, there are iron supplements available over the counter. My pediatrician recommended a multi-vitamin with iron ("Poly-Vi-Sol" or generic equivalent.) when my first baby was 3-4 months old and still just nursing, because of the vitamin D and the iron.
MAKE SURE you get the one WITH IRON - the boxes are nearly identical. They also sell "infant iron drops" (that is, it's *just* iron, at a higher concentration than the multi-vitamin) My 2 year old is taking that now, because his iron was low at his last office visit.
Keep in mind that the multi-vitamin also has vitamin D, which was just in the news because they increased the amount for the Recommended Daily Allowance, and it's sometimes scarce in breastmilk. The liquid vitamins taste TERRIBLE at first, but my kids got used to it, and don't mind the taste now. But when she's first getting used to it, wipe off the outside of the dropper and put it near the back of her tongue so she doesn't taste it as much, and get some water or juice to chase it down.
More on iron:
http://www.wholesomebabyfood.com/Iron.htm