Preheat the oven to 375°F (190°C). Cut the tops off the bell peppers and remove the seeds and membranes. Brush the outside of the peppers with olive oil and place them upright in a baking dish.

Make the Filling

In a mixing bowl, combine the pimento cheese, cream cheese, garlic powder, onion powder, paprika, salt, black pepper, and chopped parsley. Mix until well combined.

Stuff the Peppers

Spoon the pimento cheese mixture into each of the prepared bell peppers, packing the filling in tightly.

Bake

Cover the baking dish with aluminum foil and bake in the preheated oven for about 25 minutes. Remove the foil and bake for an additional 10-15 minutes, or until the peppers are tender and the filling is bubbly.

Serve

Remove from the oven and let cool slightly before serving. Garnish with additional chopped parsley if desired.