Preheat your oven to 375°F (190°C) and lightly grease a small baking dish.
Slice the tops off the bell peppers and remove the seeds and ribs from the inside to create a hollow cavity.
Heat the olive oil in a large skillet over medium heat, then add the diced onion and sauté for 3 minutes until translucent.
Add the ground beef to the skillet and cook until browned, breaking it apart into small crumbles with a wooden spoon.
Stir in the minced garlic, turmeric, cumin, sea salt, and black pepper, cooking for 1 more minute until the spices are aromatic.
Remove the skillet from the heat and fold in the cooked jasmine rice and chopped fresh parsley until well combined.
Spoon the beef and rice mixture into the hollowed bell peppers, pressing down gently to ensure they are fully packed.
Place the peppers upright in the baking dish, add 2 tablespoons of water to the bottom of the dish, and cover tightly with foil.
Bake for 30 minutes, then remove the foil and bake for an additional 10 minutes until the peppers are soft and the tops are slightly golden.