In a large skillet heat oil over high heat, add corn and cook, shaking and flipping skillet several times, about 1 minute. Add onions and garlic and season to taste with salt and pepper. Cook 1 to 2 minutes. Pour in cream, bring to a boil, reduce heat and simmer until cream reduces and thickens slightly, about 5 minutes more. Pour into a warm dish for serving. Garnish with peppers and onions.