preheat oven to 375°F

cook mushrooms, onions, broccoli, & peppers in a splash of olive oil, . or a skillet sprayed with cooking spray on medium heat for 5 minutes, or until tender. stirring occasionally, remove from heat

beat eggs& milk with wire whisk until blended. stir in veggie mixture, peppers, (roast peppers 1st, or add them with the other veggies in the skillet) I prefer roasted peppers myself..

add the cheese to that mixture, then pour into unbaked pie crust. place on a baking sheet.

bake for 35 minutes. top with remaining cheese, then bake an additional 5 to 10 minutes, or until knife inserted into center comes out clean. let stand 10 minutes before serving.