After catching a lot of fish, the disciples arrived at land. From Jesus's request, the disciples brought the fish. There were a total of 153 fish -- but the net was not broken.
Then Jesus told them to eat breakfast with them. But notice that in response, John records that "none of the disciples dared ask Him, 'Who are you?' (21:12). They had no need to ask because they already know that Jesus is the Lord. No need for confirmation; the disciples already know it!
For breakfast, Jesus gave them bread and fish (possibly a neat callback to the John 6 feeding). This scene was the third time where Jesus showed himself post-resurrection.