This one's a favorite in my family (coming to you from Karli)
Combine - 2 medium tomatoes, 2 peeled and chopped cucumbers, 2 chopped avocados, 1/2 chopped red onion, 1 can of drained and rinsed black beans, 2 tbsp. chopped cilantro (optional), juice of 1 lime, 1 tsp. cumin, and salt and pepper to taste. Toss in a bowl and serve alone as a side dish, on top of greens for a salad, or as a "relish" on chicken or fish.