Preheat oven to 375F. in a saute pan, add olive oil and heat to medium-high. add chopped onion sliced zucchini and mushrooms. Cover for 5 minutes then on corn. stir together and cover for 5 to 7 minutes stiring occasionally then remove lid and saute until 90% of liquid is gone.
Remove from heat and add to a big bowl for mixing. Add salt and pepper and stir mixing well.
Diced fresh basil leaves and add to zucchini mixture and stir well. add Monterey Jack cheese and three eggs beaten to the zucchini mixture making sure to coat everything evenly.
Transfer mixture to a greased pie pan. make sure everything is laying evenly across cover with foil and bake for 25 minutes. Then remove foil and bake for an additional 7 to 10 minutes. remove from oven and let sit for 10 minutes. if you cut into it beforehand it will be extra watery it is still cooking when it comes out
