Guacamole

3 avocados - peeled, pitted, and mashed
1 lime, juiced
1 teaspoon salt
1/2 cup diced onion
3 tablespoons chopped fresh cilantro
2 roma (plum) tomatoes, diced
1 teaspoon minced garlic
1 pinch ground cayenne pepper (optional)

In a medium bowl, mash together the avocados, lime juice, and salt.  Mix in onion, cilantro, tomatoes, and garlic, Stir in cayenne pepper.  Refrigerate 1 hour for best flavor, or serve immediately.