n n Preheat oven to 400F. Spray a large baking pan with non-stick spray, such as this olive oil spray.n n Remove the seeds from the bell peppers and chop the bell peppers into 1-2 inch pieces. Slice the zucchini into 1/3 inch slices. Cut the baby bella mushrooms in half if they are large.n n Toss all the vegetables and the chopped bacon into the prepared baking pan. Season with salt and pepper, if desired. Bake for 15-20 minutes, or until the bacon is fully cooked and crispy and the vegetables are roasted to your liking. Carefully transfer to a large dish lined with a paper towel to absorb the bacon grease.nn