Preheat the oven to 375°F and lightly grease a muffin tin.
Cook the chopped bacon in a skillet over medium heat until it starts to crisp. Remove the bacon with a slotted spoon and set it aside, leaving the rendered fat in the pan.
In a large bowl, combine the ground beef, cooked bacon, diced jalapeños, egg, almond flour, diced onion, minced garlic, sea salt, and black pepper. Mix until the ingredients are evenly distributed.
Divide the mixture into 8 portions and press each portion into the prepared muffin tin.
Top each mini meatloaf with one or two rings of bell pepper.
Bake for 25 minutes, or until the internal temperature reaches 160°F. Let the meatloafs rest for 5 minutes before serving.