Preheat the oven to 350 F and line a loaf pan with parchment paper. Whisk the almond flour, coconut flour, baking powder, salt, and garlic powder in a large bowl.
In a separate bowl mix the eggs, sour cream, and melted butter until smooth. Pour into the dry ingredients and stir until just combined.
Fold in the shredded cheddar, diced jalapenos, and green onion so they are evenly distributed through the batter.
Spread the batter into the loaf pan and smooth the top. Bake for 40 to 45 minutes until golden and set in the center.
Cool for at least 20 minutes before slicing. The bread stays moist with melty cheese pockets and a gentle jalapeno kick.