Preheat the oven to 375 degrees and line a baking sheet with parchment paper.
In a large bowl, combine the ground turkey, diced jalapeños, 3/4 cup of the shredded cheddar, egg, almond flour, onion, garlic, salt, pepper, and chili powder.
Mix with clean hands until the ingredients are evenly distributed but avoid overworking the meat.
Shape the mixture into a loaf about 8 inches long and place it on the prepared baking sheet.
Sprinkle the remaining 1/4 cup cheddar over the top of the loaf.
Bake for 35 to 40 minutes until the internal temperature reaches 165 degrees.
Let the meatloaf rest for 5 minutes before slicing.