Slice the zucchini in half lengthwise and gently scoop out the flesh.
Heat a skillet to medium heat, add the sausage and cook for 5 minutes, then add in the onions, red peppers, green peppers and garlic and cook until browned about another 3-4 minutes.
Once browned drain any extra fat.
Add in the corn, marinara sauce and parmesan cheese and mix until combined.
Add the mixture to the zucchini boats and place in a baking dish and top with cheese.
Bake for 15-20 minutes or until zucchini is fork tender. remove add fresh basil...Enjoy!