Baking foods that are typically fried will not yield the same results. You may or may not be willing to accept the differences in deference to more healthful eating.
Generally, a higher oven temp, around 400ºF-450ºF works better to cook and crisp the food item. You may or may not need to spray the items lightly with oil to aid in the process.
For something like a popper, consider stuffing a pepper and wrapping it in a slice of bacon rather than breading. Then bake it or smoke it on your outdoor grill.
"If you want to make an apple pie from scratch, you must first create the universe." -Carl Sagan