Sauteinggreen tomatoes takes theedge off their tanginess, butthey're still tart enough tocut the sweetness of caramelized Vidalia onions and freshcorn.
In a large skillet over medium heat, melt butter. Add the onion, and cook, stirring, until it begins to soften, about 6 minutes. Add tomatoes, and sprinkle sugar over mixture. Cook, stirring, until tomatoes are tender and golden brown, about 20 minutes.
Add corn to skillet; season with salt and pepper. Cook, stirring, until corn is tender and just starting to brown, about 4 minutes. Stir in thyme.
Add the vegetable mixture to the cooked pasta, and stir until combined. Serve immediately.