D.W.
try rice cereal miexed with formula and pears (sweeter). Also try sweet potatoes and other veges by themselves. A fresh mashed banana is really good too. My baby loved food at 4 months old, and didn't want much to do with baby food after 8 months old, so I started putting everything we eat through the baby grinder -- he loves real food. Just keep trying, and until he does start eating more solids keep up the breast milk and/or formula.