This recipe also makes 12 hamburger buns or 16 rolls without modification other than the forming of the dough.
Link to seeds I purchased on Amazon. They are really good. Or mix your own if you make it often enough and want to spend less $$. (pumpkin seeds, sunflower seeds, white and black sesame seeds, buckwheat groats, chia seeds, millet, amaranth. Any or all of the above. I don’t like hemp seeds in this recipe.) I make a big batch of equal proportions of each seed and store it in a cereal container.
https://smile.amazon.com/gp/product/B00EQA91NC/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1