Preheat the oven to 350 degrees F (175 degrees C).

Cook sausage in a large, deep skillet over medium-high heat until browned and crumbly, 5 to 7 minutes. Drain and let cool for 5 minutes.

Transfer sausage to a medium bowl. Add cream cheese, bread crumbs, Romano cheese, olive oil, garlic salt, oregano, and basil; mix until well combined.

Stuff pepper halves with sausage mixture, then transfer to a rimmed baking sheet.

Bake in the preheated oven until stuffing is golden brown and bubbly, 20 to 25 minutes.