2 cans of tuna (in water or olive oil, drained)
1 can of sweet corn (drained)
1 small red onion (finely chopped)
1 bell pepper (diced, any color)
1 cup cherry tomatoes (halved)
1 cucumber (diced)
1/4 cup fresh parsley (chopped)
1/4 cup olive oil
2 tablespoons lemon juice
Salt and pepper