Preheat your oven to 350°F (175°C) and line an 8x8-inch (20x20 cm) baking pan with parchment paper, leaving an overhang for easy removal.
In a food processor, pulse the pecans until they are chopped but not too fine, to maintain some texture for the bars.
In a large mixing bowl, combine the chopped pecans, almond flour, shredded coconut, pumpkin seeds, and sunflower seeds.
In a separate bowl, whisk together the melted butter, sugar-free maple syrup, vanilla extract, cinnamon, and salt until well combined.
Pour the wet ingredients into the dry ingredients and mix until everything is evenly coated.
Transfer the mixture to the prepared baking pan and press it down firmly into an even layer.
Bake in the preheated oven for 20 minutes, or until the edges are golden brown.
Remove from the oven and let the granola bars cool completely in the pan before lifting out and cutting into 12 bars.