Preheat the oven to 350F. Line a 9x5-inch loaf pan with parchment paper.
In a high-speed blender, add the nuts/seeds and pulse/blend into a coarse meal, scraping under the blade as needed. Add the whole wheat flour, oats, baking soda, and salt. Blend until combined and oats are ground up, using your tamper tool to help blend, scraping under the blade, as needed.
In a large bowl, add the olive oil, vinegar, and eggs and whisk until smooth. Stir in the sweet potato and herbs. Add the dry ingredients to the bowl and use a rubber spatula to combine until no flour remains (the mixture will be dry/thick). Add the cheese and do your best to distribute it evenly.
Scoop the mixture into the loaf pan and press out into an even layer. Top with some black pepper.
Bake for 60 minutes or until a knife inserted in the center comes out clean (no raw batter).
Carefully remove from the pan and transfer to a cooling rack or cutting board. Let cool for at least 20 minutes (or up to 1 hour) before slicing. The longer you let it cool, the easier it will slice. Cut the slices about 1-inch thick. If you go too thin, it will fall apart.
Serve warm or toasted topped with your toppings of choice, if desired.