Prepare the Ingredients: Start by dicing the ripe avocados and tomatoes into small, bite-sized pieces. Thinly slice the red onion and chop the parsley or cilantro.
Mix the Salad: In a large mixing bowl, combine the cubed avocados, diced tomatoes, sliced onion, and chopped herbs.
Add the Dressing: Drizzle the fresh lemon or lime juice along with the olive oil over the salad mix. Sprinkle with salt, pepper, and chili flakes (if using) to taste.
Toss and Serve: Gently toss the salad until all ingredients are well coated, taking care not to mash the avocado. Enjoy this delightful salad immediately as a refreshing side dish or appetizer.