Wash beans thoroughly in clear, cool water and then trim ends (if the beans are large, cut in half).
In a large saucepan over medium-high heat, bring water to a gentle boil. Add trimmed green beans and cook, uncovered, approximately 8 to 9 minutes or cook to your preference. Remove from heat and drain. NOTE: The beans will continue to cook after you remove them from the heat source. Either take them out just before they are cooked the way you like or plunge them in ice water immediately to stop the cooking process.
In a non-stick sauté pan melt the butter; stir in sugar, garlic salt, salt, pepper, and basil. Add cherry tomatoes and stir gently. Add cooked green beans, tossing gently, and serve.