Preheat the Oven:
Preheat your oven to 375°F (190°C).
Prepare the Peppers:
Cut the tops off the bell peppers and remove the seeds and membranes. If needed, slice a small amount off the bottom to help them stand upright.
Cook the Filling:
In a large skillet over medium heat, add a splash of oil and sauté the diced onion and minced garlic until soft.
Add the ground meat and cook until browned. Drain excess fat if necessary.
