Spray a loaf pan with baking spray.
In a large bowl or stand mixer, combine warm water and honey, then whisk in the yeast and let it sit for 5 minutes to bloom.
In another bowl, whisk together both flours, salt, oats, and seeds.
Once the yeast is ready, add the flour mixture and olive oil to the liquid, then knead using the stand mixer with a dough hook—start slow, then increase speed until the dough pulls away from the bowl (about 2-3 minutes).
Turn the dough onto a floured surface, shape it into a log, and roll it in extra seeds.
Transfer the dough into the prepared pan, cover with a tea towel, and let rise in a warm place for about 45 minutes (note: it won’t rise much).
Meanwhile, preheat the oven to 375°F.
Bake the bread for 45-50 minutes until golden brown, covering with foil if it darkens too quickly.
Remove from the oven, place the pan on a wire rack for 10 minutes, then turn the loaf out to cool completely on the rack.
Slice with a bread knife once cooled, serve, and enjoy.