Combine warm water (105-110°F) with honey in a large mixing bowl. Sprinkle the yeast over the surface and let it sit undisturbed for 5-7 minutes until frothy.
Add the pumpkin puree and olive oil to your activated yeast mixture, stirring until well combined. The mixture will take on a golden-orange hue.
In a separate bowl, whisk together the bread flour, salt, and pepper. Gradually add this dry mixture to your wet ingredients, stirring with a wooden spoon until the dough becomes too stiff to manage.
Turn the dough onto a lightly floured surface and knead for 8-10 minutes until smooth and elastic. The dough should pass the "windowpane test" - when a small piece can be stretched thin enough to see light through without tearing.
Gently fold in the chopped sage, pumpkin seeds, and Parmesan cheese (if using), distributing these ingredients evenly throughout the dough.
Place the dough in an oiled bowl, turning once to coat all surfaces. Cover with a damp cloth or plastic wrap and let rise in a warm location for 60-90 minutes, or until doubled in size.
Gently deflate the dough and shape it according to your preference – a round boule, oval batard, or place in a standard loaf pan. For an artisanal look, create a tight surface tension by pulling the dough edges underneath while rotating.
Cover the shaped dough and allow it to rise again for 30-45 minutes. The dough should increase by about 50% in size and slowly spring back when lightly poked with a fingertip.
Preheat your oven to 425°F (220°C) with a baking stone or inverted baking sheet inside if possible. Before baking, brush the loaf with olive oil and sprinkle additional pumpkin seeds on top. Score the surface with a sharp knife or bread lame.
Bake for 35-40 minutes until the crust is deep golden brown and the loaf sounds hollow when tapped on the bottom. For bakery-quality crust, create steam by placing a pan of hot water on the bottom rack of your oven during the first 15 minutes of baking.
Allow your bread to cool for at least 30 minutes before slicing to prevent a gummy interior.