To prepare the nuts: In a small bowl, add the pecans, walnuts, brown sugar, maple syrup, pumpkin pie spice, paprika and a pinch of salt and a grind or 2 of pepper. Stir until everything is coated and set aside.
To prepare the bacon: In another small bowl, add the brown sugar, paprika, bacon, lemon zest, a pinch of salt and a grind or 2 of pepper. Spread out on a nonstick baking sheet and cook until the bacon is almost done and the sugars are bubbling, 8 to 10 minutes. Remove from the oven and add the nut mixture on to the sheet. Stir and fold with a spatula and spread everything out on the sheet again. Place back in the oven for 15 more minutes, stirring and spreading again halfway through. Serve warm, or allow to cool and break apart.