Use as an appetizer for a heavier meal or as the main course for a summer luncheon.
4 large eggs
5 medium fresh red tomatoes
1 large cucumber
1 medium white onion
1 ripe avocado
1⁄4 cup vegetable oil
1 tablespoon prepared yellow mustard
1 tablespoon Worcestershire sauce
1⁄4 cup lime juice
1 teaspoon garlic salt
1⁄2 teaspoon ground black pepper
1 cup sour cream