Q: new SSD need to update OSX

I just installed a new SSD. Everything is working as it should however the disk i loaded OSX from has me on 10.6.8. I cant upgrade to El Capitan or or the newest version because I dont have 10.7. Is there anyway I can get updated??

Model Name: MacBook Pro

  Model Identifier: MacBookPro7,1

  Processor Name: Intel Core 2 Duo

  Processor Speed: 2.4 GHz

  Number Of Processors: 1

  Total Number Of Cores: 2

  L2 Cache: 3 MB

  Memory: 16 GB