Ingredients:
6 bell peppers, any color
4 tablespoons olive oil, plus more for drizzling
8 ounces lean ground beef
Kosher salt and freshly ground black pepper
1 onion, finely diced
2 cloves garlic, chopped
1 medium zucchini, finely diced
4 Roma tomatoes, seeded and finely diced
Red pepper flakes, as needed
1 cup cooked long-grain and wild rice
1 1/2 cups grated pepper Jack cheese