Add olive oil to a skillet over medium-high heat. Once hot, add sausage and cook until starting to brown, stirring occasionally, about 5 minutes. Remove to a plate and set aside.
Make sure you have 1-2 tablespoons of oil left in skillet. Remove any extra to a bowl, set aside.
To the skillet, add the bell pepper and onion, and cook until starting to soften, about 4 minutes. Add garlic and cook until fragrant, about 30 seconds. Remove all veggies to a plate and set aside (you can use the same plate as the sausage).
To the skillet, now add the zucchini. If needed, add some of the reserved oil to prevent sticking. Let cook until the zucchini softens and takes on some color, stirring occasionally, about 5 minutes. Add corn and cook 2 minutes more.
Stir in sausage, bell pepper, and onion. Then add red pepper flake, and season to taste with salt and pepper. Stir in basil and serve. Enjoy!
