Mama Nina's Corn Succotash

Heat oil in large pan over medium-high heat. Add zucchini, squash, bell peppers, and red onion and cook until just tender, 5 to 7 minutes. Remove from the pan.

Stir corn, sugar, margarine, basil, and salt into the pan and cook over medium-high heat for 5 minutes. Gently fold in sauteed vegetables using a large spoon. Remove from heat and let cool for 10 minutes before serving.