Heirloom tomato salad

4-5 Heirloom tomatoes cut into bit size chunks
1 avocado cut into bite size chunks
1/4 - 1/2 cup thin sliced red onion (to taste)
1/4 cup basil thinly chopped
olive oil
salt
pepper
1 splash red wine vinigar

Toss together with salt and pepper to taste, coat lightly with olive oil and a splash of vinegar. Serve and enjoy.