Prepare Ingredients - Gather all the ingredients - ripe avocados, crumbled feta cheese, chopped Kalamata olives, sun-dried tomatoes, lemon juice, chopped red onion, fresh parsley, salt, and black pepper. Have a mixing bowl, fork, knife, cutting board, citrus juicer, and measuring spoons ready. - Make sure the avocados are ripe but not overly soft for the best texture in the guacamole.

Mash Avocados - Cut the avocados in half, remove the pits, and scoop the flesh into a mixing bowl. Use a fork to mash the avocados until you reach your desired consistency.

Add Remaining Ingredients - Fold in the crumbled feta cheese, chopped Kalamata olives, sun-dried tomatoes, chopped red onion, and chopped parsley into the mashed avocados. Season with lemon juice, salt, and black pepper according to taste.

Mix and Adjust Seasoning - Gently mix all the ingredients until well combined. Taste the guacamole and adjust the seasoning if needed by adding more salt, pepper, or lemon juice.

Serve and Enjoy - Transfer the Mediterranean guacamole to a serving dish and garnish with a drizzle of olive oil, extra feta cheese crumbles, and a sprinkle of fresh parsley. Serve with tortilla chips, pita bread, or vegetable sticks for dipping.