Martha's Classic Guacamole

In a medium bowl, lightly mash avocados. Add lime juice, onion, jalapeno, cilantro, 2 teaspoons salt, and 1/4 teaspoon pepper. Fold in cherry tomatoes and eggs. Serve with plantain chips. Serve immediately or refrigerate in an airtight container with plastic directly on the surface for up to 1 day. If making ahead, hold off on stirring in eggs until just before serving.