This was very much a "to taste" recipe since I didn't really measure anything out exactly, but it included:
1/2 a seedless watermelon, diced
1 block feta
1 shallot, diced
1 lime, juiced
basil to taste
mint to taste
olive oil to taste
balsamic vinegar to taste
sea salt and pepper (to taste)
With how unspecific it was it came out fantastic. I'm actually kicking my past self for not trying it sooner it's so good. Will probably pull this out again for the 4th