I just got this recipe off Fabulous Foods.com. I haven't tried it yet but it sounds yummy and I just got the ingredients today, can't wait!

Avocado, Tomato and Sweet Onion Salad

1 lg or 2 med. avocados
juice of 1/2 lemon (about 2 tsp.)
1 pint cherry tomatoes
1/4 med. sized sweet onion (such as Vidalia or Maui)
3 T rice vinegar
1 T olive oil
kosher salt and coarsely ground black pepper to taste
3-4 large lettuce leaves

Peel avocado and remove pit. Cut avocado into 1 inch chunks and sprinkle with lemon juice. Wash tomatoes, cut each in half and add to bowl with the avocados. Slice the onion very thin and add to the bowl. Sprinkle vinegar over the vegetables, season with salt and pepper. Drizzle oil over the mixture and gently stir until all ingredients are well combined. Serve on a lettuce leaf, if desired.