Preheat oven to 375 degrees. Line your baking sheet with parchment if you are using it. I like it for easy cleanup.
Wash your bell peppers, cut off the tops, and remove the seeds and veins.
Cut the bell peppers into rings, mine were about ¾-inch. Place the rings on your baking sheet.
Combine the rest of the ingredients, except the ketchup topping, in a large bowl. Mix well to combine. Divide the meatloaf mixture between the bell pepper rings.
Place in the oven and bake for about 15 minutes. While it is baking, combine the ketchup and brown sugar. You can also use honey here if you prefer.
After 15 minutes of baking, remove and spread each meatloaf ring with the ketchup mix. Place back in the oven and bake another 5-10 minutes. I like to set it on broil for the last minute or 2, just to slightly caramelize the ketchup on top.
That is it! They are done. Sit back and enjoy. You deserve it.
These also make great meal prep as they reheat really well in the microwave.