My son lived off similar foods at that age. We only had 5 safe foods at age 2. They were the baby food you mentioned: apple blueberry, pear, as well as quinoa, potato, and avocado. (He also failed all formula including Elecare- I breastfed for 3 years until finding Neocate Splash.)
Please note that all FPIES kiddos have different triggers- so try anything suggested with great caution. You just never know . . . what works for one sometimes doesn't work for others.
There is light at the end of the tunnel- my son is now 5 years old and FPIES free! : )