Here’s what I used, you could really use anything.
5 avocados, peeled pitted and chunked (you know how to do that, right? If not look here)
2 cucumbers, peeled seeded and chopped
5 med. tomatoes, seeded and chopped
1 jalapeno, ribs and seeds removed very small dice
1/3 of a red onion very small dice
juice of 1 lemon
1/2 tablespoon of salt
2 tablespoons extra virgin olive oil
Combine all ingredient and toss gently. Cover and refrigerate – don’t make this too far in advance, the avocados oxidize pretty quickly even though you have lemon juice on them (some parsley or cilantro would have made this even better).