Add rice, water, butter, and salt to a medium saucepan. Bring to a boil over medium-high heat. Cover and reduce to simmer. Cook for 25 minutes without taking the lid off the rice.
Corn
While rice is cooking boil water in a medium stock pot. Add sugar to the water. When the water is boiling, add the corn for 3 minutes and then remove it.
When cool enough to work with, cut the corn kernels from the cob
Medley
In a bowl, combine the sliced tomatoes, green onions, rice, corn, and juice or one lime. Toss gently. Salt & Pepper to taste